The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-143-6077, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-143-6077 |
| Primary Part Number | 55976 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Thread Class | 3A A |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Width Across Flats | 0.1406 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM IN |
| Head Height | 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Internal Drive Style | HEXAGON |
| Thread Length | 0.188 INCHES NOMINAL IN |
| Head Diameter | 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 32 |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 934B055976 | L3 Technologies, Inc. Div L3 Keo (USA) |
| 55976 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 5306-01-143-6077 is a Bolt,internal Wrenching, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-01-143-6077 has 2 cross-referenced part numbers: 934B055976 (L3 Technologies, Inc. Div L3 Keo), 55976 (L3 Technologies, Inc. Div L3 Keo).
There are 3 known substitutes for 5306-01-143-6077: 3040-00-322-5637, 5330-00-523-8602, 5315-01-565-9357. Verify interchangeability with system specifications before substitution.
Key specifications for 55976: Thread Class: 3A A; Fastener Length: 0.500 INCHES NOMINAL IN; Head Style: FLAT CHAMFER; Thread Direction: RIGHT-HAND. 15 total characteristics are documented in the Federal Logistics Information System.