Spring-Fast Military: NASM22529/2 Series
The MIL SPEC Series per NASM22529/2 offers a versatile steel substrate encapsulated with lubricious fusion bonded epoxy
for superior abrasion and chemical resistance. It has enhanced grip strength and is 2 axis conformable.
It adds a sacrificial polymer cushion as a softer and sacrificial wire interface for even greater wire protection.
NASM22529/2 Series is the NASM22529/1 plus a sacrificial polymer cushion.
- U.S. Defense Dept. FAA approved: NASM22529/2 and National Stock Number: Federal Supply Code 5325.
- Superior performance: encapsulated stainless steel core: outperforms plastic 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.
Grommet Differentiation Table (GDT)
|* Includes sacrificial cushion for increased abrasion resistance.|
|NASM22529/2||Alternate||2 axis||Yes||Yes *||No||Fair||Yes||No||Mil-Spec|
- Military use and in service worldwide on airframes, wings, tails, bulkheads, webs, lightening holes, APU’s, avionics,
radars across tactical vehicles, helicopters, jets, military transports and miscellaneous tactical equipment
- Aerospace use on business jets and general aviation aircraft: IFE, seating, galleys, toilets, bulkheads, avionics, etc.
- Straight edges, knockouts, access panels and penetrations
- Small radii inside or outside corners
The old nylon grommet with glue is old, inefficient and costly. DTi has a better way.
- Epoxy encapsulated stainless steel substrate.
- Snaps on fast with finger pressure
- Installs continuously with single axis conformity
- Self locking with strong retention – no adhesives
- Simpler install: no adhesive, fixturing, curing, clean up or OSHA concerns,
reduces installed costs
- Maintenance is far easier due to its ease of application and removal
- Customization available (lengths, colors and print)
- Resistant to hydrocarbons, immersion, salt spray, shock and vibration.
- Operating Temperature Heat continuous to -40°F to 185°F (-40°C to 85°C)
- Flammability Rating per Mil Std: FAR 25.601, FAR 25.853
- High Shock and Vibration Resistance per MIL-STD-1344 to rms G 41.7
- 8 sizes to fit edge thicknesses: 0.025” to 0.26” (0.6 mm to 6.6 mm)
- Factory discrete cut lengths and reels: 25 ft. (7.6 m), 100 ft. (30.5 m), 500 ft. (152 m)
- Tools available: Installation roller, full by-pass shears, castle removal, measuring scale,
go / no-go sizing gauge, cutter cart
Spring-Fast® Product Configurations M22529/1 M22529/2
Axis Conformity 2 2
Vicat Softening Point per ASTM D01525 Rate B N/A Cushion: Thermoplastic Elastomer
Per ASTM D1525 Rate B, ISO306
Operating Temperature Range 285°F (140°C) 185°F (85°C)
Volts 60 Hz per NASM22529, Section 3.2.1
Substrate Type 304 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
Finish Epoxy, Color Lime Green FED STD 595,
Color Number 14553
Salt Spray Hours 2000
ASTM B117, MIL-STD-202, Method 301
Immersion Per NASM22529 and Skydrol Compatible
Random Shock & Vibration MIL-STD-1344, Method 2005.1 Test Condition VI, Letter J
Duration 8 hours longitudinal and 8 hours perpendicular, rms G 41.7
Flammability UL94V-0 - File No. E113553 NZMT2
MIL-STD-202F, Method 111A
Telcordia GR63 Core
Fabrication Options 10-Pack
[10-12.75 (.32m) cut length packaging]
Federal Supply Class 5325 National Stock Numbers
NATO Part Numbers
Click here for DTi's Cross Reference Chart for National Stock Numbers & NATO Part Numbers
Part # Dash
-1R-25 0.025 (0.6) 25 (7.6) 0.13 (3.3) 0.20 (5.1)
-1R-100 0.036 (0.9) 100 (30.4)
-2R-25 0.036 (0.9) 25 (7.6)
-2R-100 0.063 (1.6) 100 (30.4)
-3R-25 0.059 (1.5) 25 (7.6)
3R-100 0.074 (1.9) 100 (30.4)
-4R-25 0.070 (1.8) 25 (7.6) 0.18 (4.6) 0.24 (6.1)
-4R-100 0.093 (2.4) 100 (30.4)
-5R-25 0.090 (2.3) 25 (7.6)
-5R-100 0.111 (2.8) 100 (30.4)
-6R-25 0.105 (2.7) 25 (7.6)
-6R-100 0.134 (3.4) 100 (30.4)
-7R-25 0.178 (4.5) 25 (7.6) 0.25 (6.4) 0.32 (8.1)
-7R-100 0.198 (5.0) 100 (30.4)
-8R-25 0.240 (6.1) 25 (7.6) 0.32 (8.1) 0.38 (9.7)
-8R-100 0.260 (6.6) 100 (30.4)
-nC-85 12.75 (32.4 cm) MFE-100 Full bypass shears