The Washer,flat, cataloged under National Stock Number 5310-00-903-4633, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ozark Aeroworks Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-903-4633 |
| Primary Part Number | 1-130-265-01 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ozark Aeroworks Llc |
| Status | ACTIVE |
| Overall Diameter | 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATED |
| Hardness Rating | 89.0 ROCKWELL SUPERFICIAL 15-T MINIMUM OR 92.5 ROCKWELL SUPERFICIAL 15-T MAXIMUM |
| Material Document and Classification | AMS 5536 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | NICKEL ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.150 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| Thickness | 0.022 INCHES MINIMUM AND 0.028 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 |
|---|---|
| 1-130-265-01 PRIMARY | Ozark Aeroworks Llc (USA) |
| Reference | Meaning |
|---|---|
| 1-130-265-01 | 5/9 Secondary reference T.a.p. Tool Inc. |
| 1-130-265-01 | 3/9 Design control — primary reference U.S. Government activity |
| 1-130-265-01 | 5/9 Secondary reference Anillo Industries Llc |
| 1-130-265-01 | 5/9 Secondary reference F Rogers Co. |
NSN 5310-00-903-4633 is a Washer,flat, manufactured by Ozark Aeroworks Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-903-4633 has 1 manufacturer part number on file: 1-130-265-01 (Ozark Aeroworks Llc).
Key specifications for 1-130-265-01: Overall Diameter: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED; Hardness Rating: 89.0 ROCKWELL SUPERFICIAL 15-T MINIMUM OR 92.5 ROCKWELL SUPERFICIAL 15-T MAXIMUM; Material Document and Classification: AMS 5536 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 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.