The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-705-5437, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-705-5437 |
| Primary Part Number | PAFS401UASM |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Thread Series | UNFUNF |
| Nominal Thread Size | 0.75 INCHES0.75 INCHES IN |
| Thread Quantity Per Inch | 1616 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| PAFS401UASM PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
NSN 5310-01-705-5437 is a Nut,self-Locking,extended Washer, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-705-5437 has 1 manufacturer part number on file: PAFS401UASM (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
Key specifications for PAFS401UASM: Overall Height: 36.0 MILLIMETERS NOMINAL36.0 MILLIMETERS NOMINAL MM; Thread Series: UNFUNF; Nominal Thread Size: 0.75 INCHES0.75 INCHES IN; Part Name Assigned by Controlling Agency: SAE STRAIGHT 4 BOLT FLANGESAE STRAIGHT 4 BOLT FLANGE. 4 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.