The Spring,helical,extension, cataloged under National Stock Number 5360-00-172-6818, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-172-6818 |
| Primary Part Number | G102-662 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.690 INCHES MINIMUM AND 0.716 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | GSS 8-050M MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Load Rating | 7.160 POUNDS MINIMUM AND 8.730 POUNDS MAXIMUM LBS |
| End Style | MACHINE LOOP BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Opening Width | 0.103 INCHES NOMINAL BOTH ENDS IN |
| Material Document and Classification | STM A303-52 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 8.073 INCHES MINIMUM AND 8.193 INCHES MAXIMUM IN |
| Spring Deflection Rate | 1.200 POUNDS PER INCH NOMINAL LBS |
| Coil to Hook Inside Length | 1.750 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.564 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| Stock Diameter | 0.062 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN |
| Spring Length Under Load | 14.750 INCHES NOMINAL IN |
| Coil Quantity | 72-1/2 |
| Surface Treatment | CADMIUM OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL OVERALL |
| Hook Radius | 0.345 INCHES MINIMUM AND 0.358 INCHES MAXIMUM BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5360-00-172-6818 is a Spring,helical,extension, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-172-6818 has 2 manufacturer part numbers on file: G102-662 (Northrop Grumman Systems Corporation), G102-662 (Vibra Con Associates Inc Dba Hawthorne Spring Co).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-113-5069. Verify interchangeability with system specifications before substitution.
Key specifications for G102-662: Spring Free Outside Diameter: 0.690 INCHES MINIMUM AND 0.716 INCHES MAXIMUM IN; Surface Treatment Document and Classification: GSS 8-050M MFR REF SINGLE TREATMENT RESPONSE OVERALL; Load Rating: 7.160 POUNDS MINIMUM AND 8.730 POUNDS MAXIMUM LBS; End Style: MACHINE LOOP BOTH ENDS. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.