The Washer,flat, cataloged under National Stock Number 5310-01-091-1249, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-091-1249 |
| Primary Part Number | 18-58-4 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners |
| Status | ACTIVE |
| Overall Diameter | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Peripheral Shape Style | ROUND |
| Cross-Sectional Shape Style | RECTANGULAR |
| Material Document and Classification | MIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Center Hole Shape Style | ROUND |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL |
| Hole Diameter | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Thickness | 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 18-58-4 PRIMARY | All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners (USA) |
| 7439257P0003 | Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA) |
| 7439257P3 | Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA) |
NSN 5310-01-091-1249 is a Washer,flat, manufactured by All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-091-1249 has 3 cross-referenced part numbers: 18-58-4 (All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners), 7439257P0003 (Lockheed Martin Corp Naval Electronics & Surveillance Systems), 7439257P3 (Lockheed Martin Corp Naval Electronics & Surveillance Systems).
There are 7 known substitutes for 5310-01-091-1249: 5960-00-188-3915, 5950-00-867-6502, 5330-01-012-3688 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 18-58-4: Overall Diameter: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Material Document and Classification: MIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.