The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-091-5601, is classified within Federal Supply Class 5315 (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 21 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-091-5601 |
| Primary Part Number | 55911 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — No Item Name Available |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| First End Style | ROUND |
| Second End Relationship with First End | NOT IDENTICAL |
| Nominal Thread Size | 0.138 INCHES IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Style Designator | SHOULDER |
| Surface Finish | 125.0 MICROINCHES OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Material Document and Classification | QQ-S-766,CL 304,CONDA FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Second End Taper Angle | 45.0 DEGREES NOMINAL |
| Surface Treatment Document and Classification | MIL-C-13924,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Second End Style | CHAMFERED |
| First End Outer Radius | 0.125 INCHES NOMINAL IN |
| Second End Taper Length | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| Shank Diameter | 0.138 INCHES NOMINAL IN |
| First End Location | ROUND END |
| Thread Class | 2A A |
| Shoulder Diameter | 0.250 INCHES NOMINAL IN |
| Shank Length | 0.750 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES MINIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 55911 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 933B055911 | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 5315-01-091-5601 is a Pin,shoulder,headless, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5315 (No Item Name Available). Status: active.
NSN 5315-01-091-5601 has 2 cross-referenced part numbers: 55911 (L3 Technologies, Inc. Div L3 Keo), 933B055911 (L3 Technologies, Inc. Div L3 Keo).
There are 2 known substitutes for 5315-01-091-5601: 5325-01-051-7937, 5360-01-452-0871. Verify interchangeability with system specifications before substitution.
Key specifications for 55911: First End Style: ROUND; Second End Relationship with First End: NOT IDENTICAL; Nominal Thread Size: 0.138 INCHES IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 23 total characteristics are documented in the Federal Logistics Information System.