The Washer,spring Tension, cataloged under National Stock Number 5310-01-265-9335, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dept of the Army U S Army Electronics Command Night Vision Laboratory. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-265-9335 |
| Primary Part Number | 5002588 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dept of the Army U S Army Electronics Command Night Vision Laboratory |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Material Document and Classification | QQ-C-533,1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.390 INCHES MINIMUM AND 1.400 INCHES MAXIMUM IN |
| Material Thickness | 0.0072 INCHES MINIMUM AND 0.0088 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 172 OVERALL |
| Hole Diameter | 1.278 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 5002588 | Bma Buizza Mazzei Agency Srl (ITA) |
| 5002588 PRIMARY | Dept of the Army U S Army Electronics Command Night Vision Laboratory (USA) |
| 5002588 | L3 Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 207588-100 | 5/9 Secondary reference L3 Technologies, Inc. |
NSN 5310-01-265-9335 is a Washer,spring Tension, manufactured by Dept of the Army U S Army Electronics Command Night Vision Laboratory, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-265-9335 has 3 manufacturer part numbers on file: 5002588 (Bma Buizza Mazzei Agency Srl), 5002588 (Dept of the Army U S Army Electronics Command Night Vision Laboratory), 5002588 (L3 Technologies, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-330-4267. Verify interchangeability with system specifications before substitution.
Key specifications for 5002588: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Overall Height: 0.120 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-533,1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.390 INCHES MINIMUM AND 1.400 INCHES MAXIMUM IN. 6 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.