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NSN 5305-01-370-6955Government record, cited
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Screw, Shoulder5305-01-370-6955

NSN 5305-01-370-6955 · NIIN 013706955
FSC 5305 — Screws · FSG 53 — Hardware and Abrasives
Government record, cited
Also searched as  5305-01-370-6955 · 5305013706955 · NIIN 013706955 · 01-370-6955 · FSC 5305 Screws · MIL-S-21472, HE X, SOCKET HEAD, · NASM21472 · MIL-S-21472 · 0.250 X20UNC-2AX1.0SHOULDER LG. · QQ-N-281, 1/2 IN. THD. LENGTH
Nearby stock numbers  ·
L 1.500 INCHES NOMINAL IN ⌀0.312 INCHES NOMINAL FIRST SHOULDER IN UNIFIED NATIONAL COARSE (UNC) BOLT/SCREW PROFILE
5305-01-370-6955 — Screws
Features
  • Screw,shoulder — FSC 5305
  • Fastener Length: 1.500 INCHES NOMINAL IN
  • Shoulder Length: 1.000 INCHES NOMINAL FIRST SHOULDER IN
  • Shoulder Diameter: 0.312 INCHES NOMINAL FIRST SHOULDER IN
  • Thread Length: 0.500 INCHES NOMINAL IN
  • Shoulder Shape: ROUND FIRST SHOULDER
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Head Style: FLAT CHAMFER
Identification
  • NSN: 5305-01-370-6955
  • NIIN: 013706955
  • FSC: 5305 — Screws
  • FSG: 53 — Hardware and Abrasives
General Description

The Screw,shoulder, cataloged under National Stock Number 5305-01-370-6955, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-370-6955
Item NameScrew,shoulder
FSC / FSG5305 / 53 — Screws
StatusACTIVE
Fastener Length1.500 INCHES NOMINAL IN
Shoulder Length1.000 INCHES NOMINAL FIRST SHOULDER IN
Shoulder Diameter0.312 INCHES NOMINAL FIRST SHOULDER IN
Thread Length0.500 INCHES NOMINAL IN
Shoulder ShapeROUND FIRST SHOULDER
Nominal Thread Diameter0.250 INCHES IN
Head StyleFLAT CHAMFER
Thread DirectionRIGHT-HAND
Internal Drive StyleHEXAGON
Thread Class3A A
Thread Quantity Per Inch20
MaterialNICKEL ALLOY OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-01-372-0341MS51575-6 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-386-7850 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)
5305-01-390-3853 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)
5305-01-390-3854 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)
5305-01-390-8471 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)
5305-01-392-0143NASM51975-41 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-406-1264 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)
5305-01-474-6248DF330718 FIND 106 POSSIBLE MATCH
SCREW,SHOULDER
Possible match (shared part number)Naval Sea Systems Command
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
MIL-S-21472, HE X, SOCKET HEAD, C/1 Advisory reference — outside the item-of-supply concept
Zf Industrieantriebe Witten Gmbh
NASM21472 3/2 Design control — primary reference
U.S. Government activity
MIL-S-21472 5/9 Secondary reference
U.S. Government activity
0.250 X20UNC-2AX1.0SHOULDER LG. 5/9 Secondary reference
U.S. Government activity
QQ-N-281, 1/2 IN. THD. LENGTH 5/9 Secondary reference
U.S. Government activity
Related Parts
5305-01-372-0341POSSIBLE MATCH
SCREW,SHOULDER
MS51575-6
5305-01-386-7850POSSIBLE MATCH
SCREW,SHOULDER
5305-01-390-3853POSSIBLE MATCH
SCREW,SHOULDER
5305-01-390-3854POSSIBLE MATCH
SCREW,SHOULDER
5305-01-390-8471POSSIBLE MATCH
SCREW,SHOULDER
5305-01-392-0143POSSIBLE MATCH
SCREW,SHOULDER
NASM51975-41
5305-01-406-1264POSSIBLE MATCH
SCREW,SHOULDER
5305-01-474-6248POSSIBLE MATCH
SCREW,SHOULDER
DF330718 FIND 106

Frequently Asked Questions

What is NSN 5305-01-370-6955?

NSN 5305-01-370-6955 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.

What NSN replaces 5305-01-370-6955?

8 possible matches (shared part number, not a government interchangeability claim): 5305-01-372-0341, 5305-01-386-7850, 5305-01-390-3853. Verify interchangeability with system specifications before substitution.

What are the specifications of 5305-01-370-6955?

Key specifications for 5305-01-370-6955: Fastener Length: 1.500 INCHES NOMINAL IN; Shoulder Length: 1.000 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.312 INCHES NOMINAL FIRST SHOULDER IN; Thread Length: 0.500 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-370-6955 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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