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Spring-Fast NASM22529 Overview

Cage Code: 0HES0

Spring-Fast Mil Spec Grommets protect wires and cables from chafing and arcing.

Key Benefits

Superior performance: Spring-Fast outperforms nylon MS21266 & BACG20Z grommets.
Snap on installation lowers costs 49% vs. grommets with glue. Watch the 4 min. video below.
Improves efficiency 9.5x due to fewer steps in workflow
3 variants: for 2 or multi axis flexibility

NASM22529/1 Series

NASM22529/1 – Alternating castles
Encapsulated metal substrate
2 axis flexibility

NASM22529/2 Series

NASM22529/2 – Alternating castles
Added sacrificial abrasion cushion
2 axis flexibility

NASM22529/3 Series

NASM22529/3 – Opposing castles
Added sacrificial abrasion cushion
Multi Axis for flanged edges

Grommet Differentiation Table (GDT)

Grommet Series	Castle Geometry	Flexibility	Polymer Coating	Extra Cushion	100% TPE Encapsulation	High Heat	Mil Spec	Application Method	Notes
NASM22529/1	Alternating	2 axis	Yes	No	No	285°F/140°C	Yes	Snap on/No adhesive	FAA Approved No cure time delay
NASM22529/2	Alternating	2 axis	Yes	Yes	No	185°F/85°C	Yes	Snap on/No adhesive	FAA Approved No cure time delay
NASM22529/3	Opposing	Multi-axis	Yes	Yes	No	285°F/140°C	Yes	Snap on/No adhesive	FAA Approved No cure time delay
FOR REFERENCE
MS21266 Nylon	Opposing	2 axis	NA	Yes	NA	257°F/125°C	Yes	Adhesive Required	8-24hr cure time delay
MS21266 Teflon	Opposing	2 axis	NA	Yes	NA	527°F/275°C	Yes	Adhesive Required	8-24hr cure time delay

Applications

Military use – in service worldwide on fighter jets, helicopters, transports, ships, tactical equipment, C4 electronics & ground-based missile systems

Commercial use – general aviation aircraft, business jets & related avionics & electronic systems

Airframe Structure
-Lightening Holes
-Wing Ribs
-Tail Section
-Bulkheads

Tactical Vehicles
Auxiliary Power Units
Avionic Instruments
Seating

Dashboards
Radar Systems
Flight Refueling

Features

Spring-Fast is superior to the old inefficient, costly nylon grommet with glue.

Snaps on in seconds with finger pressure cutting total install costs by 49%
Encapsulated steel substrate locks onto the edge with proven retention
2- or multi-axis flexibility fits single/multi-plane applications and small inside/outside radii
New NASM22529/3 has multi axis flexibility –perfect for flanged edges, lightening holes & penetrations
Chemically resistant to most hydrocarbons, Skydrol immersion, salt spray, shock & vibration resistance
Installs continuously and can be used on straight edges, holes and small inside and outside corners
U.S. Dept. of Defense and FAA approved per NASM 22529/1, NASM 22529/2, NASM 22529/3
National Stock Numbers per Federal Supply Code 5325.
Customization available

Spring-Fast Process Benefits

Significant reduction in installation steps saving time & money
No special handling, training or equipment
No toxic adhesives/VOCs – a green solution with no clean-up or Haz-Mat issues
No fixturing or waiting for the adhesive to cure
No embrittlement of the nylon grommet or adhesive over time

Key Specifications

NASM22529 qualified FAA approved
NAVAIR per 01-1A-505-1 (NASM22529/2 & NASM22529/3)
RoHS compliant
Temperature Range -40ºF to 185ºF (-40ºC to 85ºC)
Flammability FAR 25.601, FAR 25.853, MIL-STD-202F
Voltage Breakdown 60 Hz 1500 V
Salt Spray Testing MIL-STD-202F

Sheet thickness 0.02” (.5mm) to 0.25” (6.4 mm)
Available in custom cut lengths & factory pre-cut reels of 25 ft. (7.6 m), 100 ft. (30.5 m) or 500 ft. (152 m)
Tools available: Installation roller, full by-pass shears, castle removal, measuring scale, go/ no-go sizing gauge
Customization/private branded kits available

Click to download/view the datasheet

Click to view/download the MIL STD NASM22529 PDF

Click to view NSNs/NATO #s Cross Reference

Sizing Charts

NASM22529/1

NASM22529/2

NASM22529/3

Due to sheet thickness tolerances and finishes, end user should determine product sizes by trial. When sheet thickness is at the maximum for the grommet chosen, end user may use a rubber mallet to set, or try the next size larger grommet.

Qualifications

Spring-Fast Product Configurations	Mil-Spec /1	Mil-Spec /2	Mil-Spec /3
Axis Conformity	Single	Single	Multi
Vicat Softening Point per ASTM D01525 Rate B	Substrate Finish: ISO306 356ºF (180ºC)	TPE Cushion: ISO306 230ºF (110ºC)	TPE Cushion: ISO306 230ºF (110ºC)
Operating Temperature Range	285°F (140°C)	185°F (85°C)	185°F (85°C)
Dielectric Strength Volts 60Hz NASM22529 Section 3.2.1	1000	1500	1500
Substrate	Stainless Steel	Stainless Steel	Stainless Steel
Taber Abrasion Resistance	Substrate Finish: Epoxy Per ASTM D 1044 1 kg load, C17 Wheel 8 mg loss 5000 cycles	TPE Cushion: Per D1044 1 kg load, C17 Wheel 25 mg loss 1000 cycles	TPE Cushion: Per D1044 1 kg load, C17 Wheel25 mg loss 1000 cycles
Finish (End Code)		Coating: Thermosetting Epoxy, Color: Lime Green per FED-STD 595, Color Number 14533	Coating: Thermosetting Epoxy, Color: Lime Green per FED-STD 595, Color Number 14533
Salt Spray Hours	500 ASTM B117, MIL-STD-202, Method 301	500 ASTM B117, MIL-STD-202, Method 301	500 ASTM B117, MIL-STD-202, Method 301
Immersion	Per NASM22529 and Skydol Compatible	Per NASM22529 and Skydol Compatible	Per NASM22529 and Skydol Compatible
Random Shock and Vibration	MIL-STD-1344, Method 2005.1 Test Condition VI, Letter J Duration 8 hours longitudinal and 8 hours perpendicular, rms G 41.7	MIL-STD-1344, Method 2005.1 Test Condition VI, Letter J Duration 8 hours longitudinal and 8 hours perpendicular, rms G 41.7	MIL-STD-1344, Method 2005.1 Test Condition VI, Letter J Duration 8 hours longitudinal and 8 hours perpendicular, rms G 41.7
Flammability	UL94 V-0 File No. E113553 NZMT2 • MIL-STD-202F, Method 111A	UL94 V-0 File No. E113553 NZMT2 • MIL-STD-202F, Method 111A	UL94 V-0 File No. E113553 NZMT2 • MIL-STD-202F, Method 111A
Fabrication Options	Pre-cut lengths. Bulk or private brand kits. Installation tool kit
	Cross Reference Chart for NSNs & NATO Part Numbers	Cross Reference Chart for NSNs & NATO Part Numbers	Cross Reference Chart for NSNs & NATO Part Numbers

Due to the pitch of the grommet, it must be cut in increments of 0.15” or 3.8 mm