The Washer,flat, cataloged under National Stock Number 5310-01-101-1498, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-101-1498 |
| Primary Part Number | 2320-N171 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| Status | ACTIVE |
| Overall Diameter | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN |
| Thickness | 0.056 INCHES MINIMUM AND 0.068 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 |
|---|---|
| 2320-N171 PRIMARY | Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA) |
| Reference | Meaning |
|---|---|
| 200600A313 | 5/9 Secondary reference L3harris Technologies, Inc. |
| 2320-N171 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| S149-12 | 5/9 Secondary reference Miltope Corporation |
NSN 5310-01-101-1498 is a Washer,flat, manufactured by Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-101-1498 has 1 manufacturer part number on file: 2320-N171 (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware).
Key specifications for 2320-N171: Overall Diameter: 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Material Document and Classification: MIL-M-20693,TY 1 MIL SPEC SINGLE 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.