PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0.312-18UNC-2AX0.875LG STLScrew,cap,hexagon Head

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-01-497-7528 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-497-7528 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-497-7528. Primary manufacturer part number: 0.312-18UNC-2AX0.875LG STL.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Thread Class: 2A A
  • Surface Treatment: CADMIUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 18
  • Fastener Length: 0.875 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-497-7528, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-497-7528
Primary Part Number0.312-18UNC-2AX0.875LG STL
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nominal Thread Diameter0.312 INCHES IN
Thread Class2A A
Surface TreatmentCADMIUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch18
Fastener Length0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6610-00-224-42521284 INTERCHANGEABLE
Vibrator,altimeter
Centroid, Inc. Dba Centroid Inc
3020-00-725-294741735 INTERCHANGEABLE
Sprocket Wheel
Cunico Corporation
5930-01-425-55384173-5 INTERCHANGEABLE
Switch Assembly
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
4710-01-725-509041735 INTERCHANGEABLE
Pipe,metallic
Campbell Scientific Inc
Cross-Reference Index
Part NumberManufacturer
0.312-18UNC-2AX0.875LG STL Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
41735 Moog Inc. Dba Ampac-Isp Corp (USA)
265-41735 ITEM 26 Moog Inc. Dba Ampac-Isp Corp (USA)
Related Parts
6610-00-224-4252INTERCHANGEABLE
VIBRATOR,ALTIMETER
1284
3020-00-725-2947INTERCHANGEABLE
SPROCKET WHEEL
41735
5930-01-425-5538INTERCHANGEABLE
SWITCH ASSEMBLY
4173-5
4710-01-725-5090INTERCHANGEABLE
PIPE,METALLIC
41735

Frequently Asked Questions

What is NSN 5305-01-497-7528?

NSN 5305-01-497-7528 is a Screw,cap,hexagon Head, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-497-7528?

NSN 5305-01-497-7528 has 3 cross-referenced part numbers: 0.312-18UNC-2AX0.875LG STL (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 41735 (Moog Inc. Dba Ampac-Isp Corp), 265-41735 ITEM 26 (Moog Inc. Dba Ampac-Isp Corp).

What NSN replaces 5305-01-497-7528?

There are 4 known substitutes for 5305-01-497-7528: 6610-00-224-4252, 3020-00-725-2947, 5930-01-425-5538 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0.312-18UNC-2AX0.875LG STL?

Key specifications for 0.312-18UNC-2AX0.875LG STL: End Item Identification: ACTUATOR RTRY; Nominal Thread Diameter: 0.312 INCHES IN; Thread Class: 2A A; Surface Treatment: CADMIUM OVERALL. 8 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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