The Washer,shouldered, cataloged under National Stock Number 5310-01-420-7100, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lenox Instrument Co., Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-420-7100 |
| Primary Part Number | 3353AS254-1 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lenox Instrument Co., Inc. |
| Status | ACTIVE |
| Shoulder Height | 0.025 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.240 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.133 INCHES MINIMUM AND 1.138 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Hole Diameter | 0.627 INCHES MINIMUM AND 0.637 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 |
|---|---|
| 3353AS254-1 PRIMARY | Lenox Instrument Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3353AS254-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5310-01-420-7100 is a Washer,shouldered, manufactured by Lenox Instrument Co., Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-420-7100 has 1 manufacturer part number on file: 3353AS254-1 (Lenox Instrument Co., Inc.).
Key specifications for 3353AS254-1: Overall Height: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN; Shoulder Height: 0.025 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Material Document and Classification: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE 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.