The Bolt,eccentric Head, cataloged under National Stock Number 5306-01-373-4835, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-373-4835 |
| Primary Part Number | P4078870-01 |
| Item Name | Bolt,eccentric Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Fastener Length | 5.970 INCHES MINIMUM AND 6.030 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2404 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Distance From Center of Head to Center of Shank | 1.045 INCHES NOMINAL IN |
| Material Document and Classification | AISI 4130 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | TEE NO. 3 |
| Thread Direction | RIGHT-HAND |
| Head Length | 4.930 INCHES MINIMUM AND 4.950 INCHES MAXIMUM IN |
| Width Between Flats | 1.690 INCHES MINIMUM AND 1.720 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 10 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| P4078870-01 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5306-01-373-4835 is a Bolt,eccentric Head, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-373-4835 has 1 manufacturer part number on file: P4078870-01 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for P4078870-01: Head Height: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Fastener Length: 5.970 INCHES MINIMUM AND 6.030 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS 2404 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.