Spring-Fast NASM22529 Overview

Cage Code: 0HES0

Military Grommet Edging

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 – Alternating castles
  • Encapsulated metal substrate
  • 2 axis flexibility
  • NASM22529/2 – Alternating castles
  • Added sacrificial abrasion cushion
  • 2 axis flexibility
  • NASM22529/3 – Opposing castles
  • Added sacrificial abrasion cushion
  • Multi Axis for flanged edges

Grommet Differentiation Table (GDT)

Grommet SeriesCastle GeometryFlexibilityPolymer CoatingExtra Cushion100% TPE EncapsulationHigh HeatMil SpecApplication MethodNotes
NASM22529/1Alternating2 axisYesNoNo285°F/140°CYesSnap on/No adhesiveFAA Approved
No cure time delay
NASM22529/2Alternating2 axisYesYes No185°F/85°CYesSnap on/No adhesiveFAA Approved
No cure time delay
NASM22529/3 OpposingMulti-axisYesYes No285°F/140°CYesSnap on/No adhesiveFAA Approved
No cure time delay
FOR REFERENCE
MS21266 Nylon Opposing2 axisNAYes NA257°F/125°CYesAdhesive Required8-24hr cure time delay
MS21266 Teflon Opposing2 axisNAYes NA527°F/275°CYesAdhesive Required8-24hr 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

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 ConfigurationsMil-Spec /1Mil-Spec /2Mil-Spec /3
Axis ConformitySingleSingleMulti
Vicat Softening Point per ASTM D01525 Rate BSubstrate Finish: ISO306 356ºF (180ºC)TPE Cushion: ISO306 230ºF (110ºC)TPE Cushion: ISO306 230ºF (110ºC)
Operating Temperature Range285°F (140°C)185°F (85°C)185°F (85°C)
Dielectric Strength Volts 60Hz NASM22529 Section 3.2.1100015001500
SubstrateStainless SteelStainless SteelStainless Steel
Taber Abrasion ResistanceSubstrate 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 14533Coating: Thermosetting Epoxy, Color: Lime Green per FED-STD 595, Color Number 14533
Salt Spray Hours500
ASTM B117, MIL-STD-202, Method 301
500
ASTM B117, MIL-STD-202, Method 301
500
ASTM B117, MIL-STD-202, Method 301
ImmersionPer NASM22529 and Skydol CompatiblePer NASM22529 and Skydol CompatiblePer NASM22529 and Skydol Compatible
Random Shock and VibrationMIL-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
FlammabilityUL94 V-0 File No. E113553 NZMT2 • MIL-STD-202F, Method 111AUL94 V-0 File No. E113553 NZMT2 • MIL-STD-202F, Method 111AUL94 V-0 File No. E113553 NZMT2 • MIL-STD-202F, Method 111A
Fabrication OptionsPre-cut lengths. Bulk or private brand kits. Installation tool kit
Cross Reference Chart for NSNs & NATO Part NumbersCross Reference Chart for NSNs & NATO Part NumbersCross 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