The Washer,spring Tension, cataloged under National Stock Number 5310-00-487-7168, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-487-7168 |
| Primary Part Number | PB53840-1 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Material Document and Classification | QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN |
| Material Thickness | 0.011 INCHES MINIMUM AND 0.013 INCHES MAXIMUM IN |
| Surface Treatment | TIN OVERALL |
| Material | COPPER ALLOY 170 OVERALL |
| Hole Diameter | 1.230 INCHES MINIMUM AND 1.240 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 |
|---|---|
| PB53840-1 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| Reference | Meaning |
|---|---|
| PB53840-1 | 5/2 Secondary reference U.S. Government activity |
| PB53840-1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5310-00-487-7168 is a Washer,spring Tension, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-487-7168 has 1 manufacturer part number on file: PB53840-1 (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for PB53840-1: Overall Height: 0.078 INCHES NOMINAL IN; Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM IN; Material Thickness: 0.011 INCHES MINIMUM AND 0.013 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.