The Bolt,machine, cataloged under National Stock Number 5306-00-144-3706, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 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 | 5306-00-144-3706 |
| Primary Part Number | 278-24 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — No Item Name Available |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Head Height | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.750 INCHES NOMINAL FIRST HOLE IN |
| Thread Quantity Per Inch | 28 |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM FIRST HOLE IN |
| Head Style | HEXAGON |
| Material Document and Classification | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR AMS 6300 ASSN STD 4TH MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 6TH MATERIAL RESPONSE OVERALL |
| Thread Length | 0.468 INCHES MINIMUM IN |
| Grip Length | 0.438 INCHES NOMINAL IN |
| Features Provided | FINISHED HEAD |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Fastener Length | 0.906 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 278-24 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| AN4-7 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| 900880K1 | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| 400 104 | Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (USA) |
| 5306PL0921862 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 0544 | Power Industries Inc (USA) |
| 900880K1 | Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA) |
| 278-24 | Donallco Inc (USA) |
| 900880K36 | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
NSN 5306-00-144-3706 is a Bolt,machine, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5306 (No Item Name Available). Status: active.
NSN 5306-00-144-3706 has 9 cross-referenced part numbers: 278-24 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), AN4-7 (Aeronautical Standards Group Dept of Navy and Air Force), 900880K1 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), 400 104 (Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company), 5306PL0921862 (Jednolity Indeks Materialowy - Uniform Material Index) and 4 more.
There are 12 known substitutes for 5306-00-144-3706: 5340-00-830-9580, 3110-00-183-6724, 5136-00-239-2770 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 278-24: Thread Direction: RIGHT-HAND; Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Thread Series Designator: UNF; Distance From Head Largest Bearing Surface to Shank Hole Center: 0.750 INCHES NOMINAL FIRST HOLE IN. 20 total characteristics are documented in the Federal Logistics Information System.