The Spring,helical,extension, cataloged under National Stock Number 5360-00-403-8153, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems (operations) Limited. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-403-8153 |
| Primary Part Number | 4811-5221-001 |
| Item Name | Spring,helical,extension |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | Bae Systems (operations) Limited |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-STD-186 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| End Style | MACHINE CUT-OFF BOTH ENDS |
| Design Type | CLOSED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-W-423-A,COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.750 INCHES NOMINAL IN |
| Inside Diameter | 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Coil Helix Direction | RIGHT-HAND OR LEFT-HAND |
| Material | STEEL COMP 302 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4811-5221-001 PRIMARY | Bae Systems (operations) Limited (GBR) |
| 4811-5221-001 | Bright Lights Usa, Inc Dba Blusa Defense Manufacturing (USA) |
NSN 5360-00-403-8153 is a Spring,helical,extension, manufactured by Bae Systems (operations) Limited, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-403-8153 has 2 manufacturer part numbers on file: 4811-5221-001 (Bae Systems (operations) Limited), 4811-5221-001 (Bright Lights Usa, Inc Dba Blusa Defense Manufacturing).
Key specifications for 4811-5221-001: Spring Free Outside Diameter: 0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-STD-186 MIL STD SINGLE TREATMENT RESPONSE OVERALL; End Style: MACHINE CUT-OFF BOTH ENDS; Design Type: CLOSED. 11 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.