The Washer,flat, cataloged under National Stock Number 5310-01-554-8707, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Johnson Controls Navy Systems, Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-554-8707 |
| Primary Part Number | 028-06955-000 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Johnson Controls Navy Systems, Llc |
| Status | ACTIVE |
| Width Across Flats | 3.625 INCHES NOMINAL IN |
| Length | 0.500 INCHES NOMINAL IN |
| Peripheral Shape Style | RECTANGULAR |
| Material | RUBBER NEOPRENE 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 |
|---|---|
| 028-06955-000 PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 477-15979-000 ITEM 60 | 5/1 Secondary reference Johnson Controls Navy Systems, Llc |
NSN 5310-01-554-8707 is a Washer,flat, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-554-8707 has 1 manufacturer part number on file: 028-06955-000 (Johnson Controls Navy Systems, Llc).
Key specifications for 028-06955-000: Width Across Flats: 3.625 INCHES NOMINAL IN; Length: 0.500 INCHES NOMINAL IN; Special Features: NHA; MARINEPAK, 300 TON DUPLEX R-114 WATER COOLING SYSTEM; Peripheral Shape Style: RECTANGULAR. 4 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.