The Washer,lock, cataloged under National Stock Number 5310-01-026-3791, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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 | 5310-01-026-3791 |
| Primary Part Number | 0164-4 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | MIL-Q-21549B-SP24-1 |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Outside Diameter | 0.198 INCHES MAXIMUM0.198 INCHES MAXIMUM IN |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Hole Diameter | 0.102 INCHES MINIMUM AND 0.102 INCHES MINIMUM AND 0.110 INCHES MAXIMUM0.110 INCHES MAXIMUM IN |
| Material | STEEL COMP 303 OVERALL |
| Material Thickness | 0.025 INCHES MINIMUM0.025 INCHES MINIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5310-01-026-3791 is a Washer,lock, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-026-3791 has 2 cross-referenced part numbers: 0164-4 (Lockheed Martin Corporation Div Rms), 0164-4 (Lockheed Martin Corporation Div Rms - Mitchel Field).
There is 1 known substitute for 5310-01-026-3791: 5310-00-367-9198. Verify interchangeability with system specifications before substitution.
Key specifications for 0164-4: Reference Number Differentiating Characteristics: MIL-Q-21549B-SP24-1; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Outside Diameter: 0.198 INCHES MAXIMUM0.198 INCHES MAXIMUM IN; Style Designator: SPLIT HELICAL-RIGHT HAND. 8 total characteristics are documented in the Federal Logistics Information System.