The Nut,plain,square, cataloged under National Stock Number 5310-00-208-3895, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Textron Systems Corporation Dba Textron Systems Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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 | 5310-00-208-3895 |
| Primary Part Number | 47-631-149-1 |
| Item Name | Nut,plain,square |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Textron Systems Corporation Dba Textron Systems Corp |
| Status | ACTIVE |
| Thread Class | 3B |
| Bearing Surface Type | FLAT |
| Thread Series | UNF |
| Thread Quantity Per Inch | 28 |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Nut Height | 0.188 INCHES NOMINAL IN |
| Material | STEEL COMP 4140 OVERALL |
| Material Document and Classification | MIL-S-5626,COND F MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| Width Across Flats | 0.438 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| C18 | Cox Machine Inc (USA) |
| 47-631-149-1 | Bell Textron Inc (USA) |
| 47-631-149-1 | Lockheed Martin Corporation Dba Lockheed Martin Rotary and Mission Systems Div Rms- C6isr (USA) |
| 47-631-149-1 PRIMARY | Textron Systems Corporation Dba Textron Systems Corp (USA) |
| 47-631-149-1 | Gard Research Corp |
| C3895 | Gard Research Corp |
NSN 5310-00-208-3895 is a Nut,plain,square, manufactured by Textron Systems Corporation Dba Textron Systems Corp, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-208-3895 has 6 cross-referenced part numbers: C18 (Cox Machine Inc), 47-631-149-1 (Bell Textron Inc), 47-631-149-1 (Lockheed Martin Corporation Dba Lockheed Martin Rotary and Mission Systems Div Rms- C6isr), 47-631-149-1 (Textron Systems Corporation Dba Textron Systems Corp), 47-631-149-1 (Gard Research Corp) and 1 more.
There are 12 known substitutes for 5310-00-208-3895: 5220-00-056-5918, 5340-00-152-6141, 3439-00-293-4716 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 47-631-149-1: Thread Class: 3B; Bearing Surface Type: FLAT; Thread Series: UNF; Thread Quantity Per Inch: 28. 11 total characteristics are documented in the Federal Logistics Information System.