The Washer,lock, cataloged under National Stock Number 5310-00-721-7810, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kleinschmidt Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-721-7810 |
| Primary Part Number | 10430 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Kleinschmidt Inc |
| Status | ACTIVE |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Material | STEEL OVERALL |
| Outside Diameter | 0.310 INCHES NOMINAL IN |
| Hole Diameter | 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Material Thickness | 0.047 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 10430 | Kleinschmidt Inc (USA) |
| 855492 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA) |
| MS35339-23 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5310-00-721-7810 is a Washer,lock, manufactured by Kleinschmidt Inc, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-721-7810 has 3 cross-referenced part numbers: 10430 (Kleinschmidt Inc), 855492 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament), MS35339-23 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).
There are 12 known substitutes for 5310-00-721-7810: 6685-00-048-7931, 6650-00-107-8509, 5945-00-193-0089 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 10430: Surface Treatment: CADMIUM OR ZINC OVERALL; Material: STEEL OVERALL; Outside Diameter: 0.310 INCHES NOMINAL IN; Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.