The Washer,spring Tension, cataloged under National Stock Number 5310-00-558-3307, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-558-3307 |
| Primary Part Number | 56524 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Hardness Rating | 81.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 84.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.900 INCHES MINIMUM AND 0.920 INCHES MAXIMUM IN |
| Material Thickness | 0.015 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Material | STEEL COMP 1095 OVERALL |
| Hole Diameter | 0.672 INCHES MINIMUM AND 0.682 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 |
|---|---|
| 56524 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 56524 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 5310-00-558-3307 is a Washer,spring Tension, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-558-3307 has 1 manufacturer part number on file: 56524 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-450-4163. Verify interchangeability with system specifications before substitution.
Key specifications for 56524: Overall Height: 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Hardness Rating: 81.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 84.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.900 INCHES MINIMUM AND 0.920 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.