PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25903Nut,sleeve

Allied Systems Company Dba Allied Systems Co · NSN 5310-01-423-6620 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-423-6620 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-423-6620. Primary manufacturer part number: 25903.
Features
  • Nut,sleeve — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Thread Class: 2B
  • Nut Length: 1.396 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Thread Length: 0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Thread Quantity Per Inch: 18
  • Nominal Thread Size: 0.3125 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,sleeve, cataloged under National Stock Number 5310-01-423-6620, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Allied Systems Company Dba Allied Systems Co. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-423-6620
Primary Part Number25903
Item NameNut,sleeve
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAllied Systems Company Dba Allied Systems Co
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Class2B
Nut Length1.396 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread Length0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Thread Quantity Per Inch18
Nominal Thread Size0.3125 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5307-00-261-0441 INTERCHANGEABLE
Stud,plain
5325-01-076-551125903 INTERCHANGEABLE
Insert,screw Thread
Jergens Inc Div Tooling Components Division
4810-01-161-509425903 INTERCHANGEABLE
Valve,solenoid
Forenta Lp
Cross-Reference Index
Part NumberManufacturer
25903 PRIMARY Allied Systems Company Dba Allied Systems Co (USA)
Related Parts
5307-00-261-0441INTERCHANGEABLE
STUD,PLAIN
5325-01-076-5511INTERCHANGEABLE
INSERT,SCREW THREAD
25903
4810-01-161-5094INTERCHANGEABLE
VALVE,SOLENOID
25903

Frequently Asked Questions

What is NSN 5310-01-423-6620?

NSN 5310-01-423-6620 is a Nut,sleeve, manufactured by Allied Systems Company Dba Allied Systems Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-423-6620?

NSN 5310-01-423-6620 has 1 cross-referenced part number: 25903 (Allied Systems Company Dba Allied Systems Co).

What NSN replaces 5310-01-423-6620?

There are 3 known substitutes for 5310-01-423-6620: 5307-00-261-0441, 5325-01-076-5511, 4810-01-161-5094. Verify interchangeability with system specifications before substitution.

What are the specifications of 25903?

Key specifications for 25903: Thread Direction: RIGHT-HAND; Thread Class: 2B; Nut Length: 1.396 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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