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NSN 5305-01-503-8430Government record, cited
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Screw, Cap, Socket Head5305-01-503-8430

NSN 5305-01-503-8430 · NIIN 015038430 · Part number AES43M06A025DX9A31
The American Society of Mechanical Engineers · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 05047
Government record, cited
NSN 5305-01-503-8430 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-503-8430. Manufacturer of record part number: AES43M06A025DX9A31.
Also searched as  5305-01-503-8430 · 5305015038430 · NIIN 015038430 · 01-503-8430 · FSC 5305 Screws · CAGE 05047 · AES43M06A025DX9A31 · B1831DH060025N · B18.3.1M
Nearby stock numbers  ·
L 25.0 MILLIMETERS NOMINAL MM ⌀6.0 MILLIMETERS MM M BOLT/SCREW PROFILE
5305-01-503-8430 — Screws
Features
  • Screw,cap,socket Head — FSC 5305
  • Width Across Flats: 5.0 MILLIMETERS NOMINAL MM
  • Head Height: 5.6 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM MM
  • External Thread Tolerance Class: 4G6G
  • Fastener Length: 25.0 MILLIMETERS NOMINAL MM
  • Thread Pitch in Millimeters: 1.0
  • Thread Length: 24.0 MILLIMETERS NOMINAL MM
  • Nominal Thread Diameter: 6.0 MILLIMETERS MM
Identification
  • NSN: 5305-01-503-8430
  • NIIN: 015038430
  • FSC: 5305 — Screws
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: AES43M06A025DX9A31
  • Manufacturer: The American Society of Mechanical Engineers
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-503-8430, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government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
NSN5305-01-503-8430
Primary Part NumberAES43M06A025DX9A31
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — Screws
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Width Across Flats5.0 MILLIMETERS NOMINAL MM
Head Height5.6 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM MM
External Thread Tolerance Class4G6G
Fastener Length25.0 MILLIMETERS NOMINAL MM
Thread Pitch in Millimeters1.0
Thread Length24.0 MILLIMETERS NOMINAL MM
Nominal Thread Diameter6.0 MILLIMETERS MM
Head StyleFLAT CHAMFER
Thread DirectionRIGHT-HAND
Internal Drive StyleHEXAGON
MaterialSTEEL CORROSION RESISTING OVERALL
Thread Series DesignatorM
Head Diameter9.7 MILLIMETERS MINIMUM AND 10.0 MILLIMETERS MAXIMUM MM
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5305-01-622-9391AES43M06A030CH1L91 POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)The American Society of Mechanical Engineers
5305-01-627-3970AES43M10C030WC1A51 POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)The American Society of Mechanical Engineers
5305-01-646-1663B1831BH120050L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-646-1677B1831BH080050L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-646-1686B1831BH060025L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-646-1699B1831BH120140L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-646-1780B1831BH060012L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-646-1807B1831BH060010L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-646-1866B1831BH120160L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
5305-01-646-2239B1831BH060035L POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)American National Standards Institute Incorporated Dba American National Standards Institute
Cross-Reference Index
Part NumberManufacturer
AES43M06A025DX9A31 PRIMARY The American Society of Mechanical Engineers (USA)
Reference documents
ReferenceMeaning
B1831DH060025N 5/9 Secondary reference
U.S. Government activity
B18.3.1M 3/1 Design control — primary reference
The American Society of Mechanical Engineers
Related Parts
5305-01-622-9391POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
AES43M06A030CH1L91
5305-01-627-3970POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
AES43M10C030WC1A51
5305-01-646-1663POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH120050L
5305-01-646-1677POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH080050L
5305-01-646-1686POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH060025L
5305-01-646-1699POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH120140L
5305-01-646-1780POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH060012L
5305-01-646-1807POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH060010L
5305-01-646-1866POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH120160L
5305-01-646-2239POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
B1831BH060035L

Frequently Asked Questions

What is NSN 5305-01-503-8430?

NSN 5305-01-503-8430 is a Screw,cap,socket Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-503-8430?

NSN 5305-01-503-8430 has 1 manufacturer part number on file: AES43M06A025DX9A31 (The American Society of Mechanical Engineers).

What NSN replaces 5305-01-503-8430?

10 possible matches (shared part number, not a government interchangeability claim): 5305-01-622-9391, 5305-01-627-3970, 5305-01-646-1663. Verify interchangeability with system specifications before substitution.

What are the specifications of AES43M06A025DX9A31?

Key specifications for AES43M06A025DX9A31: Width Across Flats: 5.0 MILLIMETERS NOMINAL MM; Head Height: 5.6 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 4G6G; Fastener Length: 25.0 MILLIMETERS NOMINAL MM. 13 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-503-8430 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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