The Nut,plain,square, cataloged under National Stock Number 5310-00-012-0399, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-012-0399 |
| Primary Part Number | 120399 |
| Item Name | Nut,plain,square |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | CANCELLED |
| Thread Class | 2B |
| Width Across Flats | 0.545 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.312 INCHES IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Bearing Surface Type | FLAT |
| Thread Quantity Per Inch | 18 |
| Thread Direction | RIGHT-HAND |
| Material | STEEL OVERALL |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Nut Height | 0.208 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Nut Style | SQUARE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 120399 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 12384 PRIMARY | Honeywell International Inc Dba Honeywell Div Consumer Products Group (USA) |
| 120399 | General Motors Corp (USA) |
| MILB933TYPEB | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 120399 | Rolls-Royce Solutions America Inc (USA) |
| 55939 | Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA) |
| 120399 | General Motors Llc Dba General Motors Llc (USA) |
| 120399 PRIMARY | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| 153684 | Facet (oklahoma) Llc (USA) |
| 24D05 | Clark Equipment Co (USA) |
| 153684 | Honeywell International Inc Dba Honeywell Div Consumer Products Group (USA) |
| 24D05 | Dana Off Highway Products, Llc (USA) |
NSN 5310-00-012-0399 is a Nut,plain,square, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-012-0399 has 12 cross-referenced part numbers: 120399 (Us Army Aviation and Missile Command), 12384 (Honeywell International Inc Dba Honeywell Div Consumer Products Group), 120399 (General Motors Corp), MILB933TYPEB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 120399 (Rolls-Royce Solutions America Inc) and 7 more.
There are 12 known substitutes for 5310-00-012-0399: 5310-00-010-3101, 5310-00-010-3102, 5310-00-010-3104 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 120399: Thread Class: 2B; Width Across Flats: 0.545 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN; Nominal Thread Size: 0.312 INCHES IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 11 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-012-0399 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.