The Bolt,assembled Washer, cataloged under National Stock Number 5306-01-138-9538, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Army Weapons Command Attn Amswe-Ree-S. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-138-9538 |
| Primary Part Number | 425323 |
| Item Name | Bolt,assembled Washer |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Army Weapons Command Attn Amswe-Ree-S |
| Status | ACTIVE |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Washer Quantity | 1 |
| Primary Washer Material Thickness | 0.025 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.466 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM PRIMARY WASHER |
| Primary Washer Style | FLAT EXTERNAL TEETH |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES PRIMARY WASHER |
| Thread Length | 0.244 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Head Style | HEXAGON |
| Fastener Length | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL COMP 1050 OR STEEL COMP 1566 OVERALL |
| Head Height | 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 425323 | Army Weapons Command Attn Amswe-Ree-S (USA) |
NSN 5306-01-138-9538 is a Bolt,assembled Washer, manufactured by Army Weapons Command Attn Amswe-Ree-S, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-01-138-9538 has 1 cross-referenced part number: 425323 (Army Weapons Command Attn Amswe-Ree-S).
There is 1 known substitute for 5306-01-138-9538: 5306-00-042-5323. Verify interchangeability with system specifications before substitution.
Key specifications for 425323: Surface Treatment: CADMIUM OR ZINC OVERALL; Thread Class: 2A A; Thread Quantity Per Inch: 20; Washer Quantity: 1. 19 total characteristics are documented in the Federal Logistics Information System.