The Washer,flat, cataloged under National Stock Number 5310-00-595-5669, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-595-5669 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 1.745 INCHES MINIMUM AND 1.770 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.005 INCHES MINIMUM AND 1.025 INCHES MAXIMUM IN |
| Thickness | 0.080 INCHES MINIMUM AND 0.100 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 |
| Reference | Meaning |
|---|---|
| AN960C1616L | 2/2 Government specification standardization U.S. Government activity |
| 004-003081-054 | 5/1 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| 10121531 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 8526153 | 5/1 Secondary reference Us Army Aviation and Missile Command |
| FF-W-92 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-595-5669 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-595-5669: Overall Diameter: 1.745 INCHES MINIMUM AND 1.770 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.