The Bolt,machine, cataloged under National Stock Number 5306-00-638-8275, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5306-00-638-8275 |
| Primary Part Number | 221410 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | CANCELLED |
| Thread Direction | RIGHT-HAND |
| Material | STEEL COMP 601 OVERALL |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Head Height | 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN |
| Head Style | HEXAGON |
| Fastener Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 24 |
| Hole Diameter | 0.065 INCHES NOMINAL IN |
| Hole Quantity | 1 |
| Thread Series Designator | UNF |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| Hole Configuration Style | HEXAGON FLATS |
| Material Document and Classification | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Hole Type | DRILLED |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Nonstandard Thread Pitch Diameter | +0.2797 TO 0.2824 INCHES IN |
| Features Provided | FINISHED HEAD |
| Criticality Code Justification | AAUB |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 537959 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 221410 | Howmet Global Fastening Systems Inc Div Torrance Operations (USA) |
| 221410 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 221410 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 221410 | Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA) |
| 537959 | Howmet Global Fastening Systems Inc Div Torrance Operations (USA) |
| 537959 | Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA) |
| 537959 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 537959 | Valco Co Government Sales Office (USA) |
NSN 5306-00-638-8275 is a Bolt,machine, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5306 (No Item Name Available). Status: cancelled.
NSN 5306-00-638-8275 has 9 cross-referenced part numbers: 537959 (Zf Industrieantriebe Witten Gmbh), 221410 (Howmet Global Fastening Systems Inc Div Torrance Operations), 221410 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 221410 (Rtx Corporation Div Pratt & Whitney), 221410 (Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana) and 4 more.
There are 4 known substitutes for 5306-00-638-8275: 5306-00-109-8993, 6680-00-515-5910, 4810-01-218-2357 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 221410: Thread Direction: RIGHT-HAND; Material: STEEL COMP 601 OVERALL; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL; Head Height: 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 5306-00-638-8275 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.