The Washer,flat, cataloged under National Stock Number 5310-00-997-7002, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-997-7002 |
| Primary Part Number | 028057 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems |
| Status | ACTIVE |
| Overall Diameter | 1.423 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.000 INCHES NOMINAL IN |
| Thickness | 0.030 INCHES NOMINAL 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 |
|---|---|
| 028057 PRIMARY | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems (USA) |
NSN 5310-00-997-7002 is a Washer,flat, manufactured by Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-997-7002 has 1 manufacturer part number on file: 028057 (Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems).
Key specifications for 028057: Overall Diameter: 1.423 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL OVERALL. 7 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.