NSN 5305-01-657-4068 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-657-4068. Manufacturer of record part number: 4087512013.
Head Height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Fastener Length: 3.50 INCHES NOMINAL IN
Thread Length: 0.75 INCHES NOMINAL IN
Nominal Thread Diameter: 0.250 INCHES IN
Head Style: HEXAGON
Thread Direction: RIGHT-HAND
Width Between Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Identification
NSN: 5305-01-657-4068
NIIN: 016574068
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: 4087512013
Manufacturer: Oshkosh Defense Llc
General Description
The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-657-4068, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5305-01-657-4068
Primary Part Number
4087512013
Item Name
Screw,cap,hexagon Head
FSC / FSG
5305 / 53 — Screws
Manufacturer
Oshkosh Defense Llc
Status
ACTIVE
Head Height
0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Fastener Length
3.50 INCHES NOMINAL IN
Thread Length
0.75 INCHES NOMINAL IN
Nominal Thread Diameter
0.250 INCHES IN
Head Style
HEXAGON
Thread Direction
RIGHT-HAND
Width Between Flats
0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Color
BLACK OVERALL
Surface Treatment
PHOSPHATE OVERALL
Thread Class
2A A
Thread Quantity Per Inch
20
Material
STEEL OVERALL
Thread Series Designator
UNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-01-657-84624087512008POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)Oshkosh Defense Llc
5305-01-658-07394087512015POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)Oshkosh Defense Llc
5305-01-661-20064087512003POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)Oshkosh Defense Llc
5305-01-666-32964087512006POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)Oshkosh Defense Llc
5305-01-696-742612600972-004POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5305-01-716-23094087512016POSSIBLE MATCH
SCREW,CAP,HEXAGON HEAD
Possible match (shared part number)Oshkosh Defense Llc
NSN 5305-01-657-4068 is a Screw,cap,hexagon Head, manufactured by Oshkosh Defense Llc, classified under FSC 5305, Screws. Status: active.
What part numbers are listed for NSN 5305-01-657-4068?
NSN 5305-01-657-4068 has 1 manufacturer part number on file: 4087512013 (Oshkosh Defense Llc).
What NSN replaces 5305-01-657-4068?
6 possible matches (shared part number, not a government interchangeability claim): 5305-01-657-8462, 5305-01-658-0739, 5305-01-661-2006. Verify interchangeability with system specifications before substitution.
What are the specifications of 4087512013?
Key specifications for 4087512013: Head Height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN; Fastener Length: 3.50 INCHES NOMINAL IN; Thread Length: 0.75 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN. 13 specifications are documented in the U.S. Government catalog.
Is NSN 5305-01-657-4068 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.