The Washer,flat, cataloged under National Stock Number 5310-01-472-5272, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-472-5272 |
| Primary Part Number | NAS1149V0316H |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Overall Diameter | 0.438 INCHES NOMINAL IN |
| Material Document and Classification | MIL-T-9046,CLASS AB-1 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 4911 ASSN STD 2ND MATERIAL RESPONSE OR AMS 4928 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.203 INCHES NOMINAL IN |
| Thickness | 0.016 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 |
|---|---|
| NAS1149V0316H PRIMARY | The Boeing Company Div Defense (USA) |
| NAS1149V0316H | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| NAS1149V0316H | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-472-5272 is a Washer,flat, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-472-5272 has 2 manufacturer part numbers on file: NAS1149V0316H (The Boeing Company Div Defense), NAS1149V0316H (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for NAS1149V0316H: Overall Diameter: 0.438 INCHES NOMINAL IN; Material Document and Classification: MIL-T-9046,CLASS AB-1 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 4911 ASSN STD 2ND MATERIAL RESPONSE OR AMS 4928 ASSN STD 3RD 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.