The Washer,flat, cataloged under National Stock Number 5310-01-388-2360, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution Services X, Inc.. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-388-2360 |
| Primary Part Number | NAS1149D1290J |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Boeing Distribution Services X, Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-5541, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.307 INCHES MINIMUM AND 1.332 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | CHROMATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 1230 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.755 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN |
| Thickness | 0.090 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 |
|---|---|
| NAS1149D1290J | Boeing Distribution Services X, Inc. (USA) |
| NAS1149D1290J | Crickett Technology Partners, Inc. Dba Crickett Technology Partners (USA) |
| Reference | Meaning |
|---|---|
| NAS1149D1290J | 3/2 Design control — primary reference U.S. Government activity |
| 10122280 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5310PL0638031 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-388-2360 is a Washer,flat, manufactured by Boeing Distribution Services X, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-388-2360 has 2 manufacturer part numbers on file: NAS1149D1290J (Boeing Distribution Services X, Inc.), NAS1149D1290J (Crickett Technology Partners, Inc. Dba Crickett Technology Partners).
Key specifications for NAS1149D1290J: Surface Treatment Document and Classification: MIL-C-5541, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.307 INCHES MINIMUM AND 1.332 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 11 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.