PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-I-45914Insert,screw Thread

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5325-01-371-0904 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-371-0904 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-371-0904. Primary manufacturer part number: MIL-I-45914.
Features
  • Insert,screw Thread — FSC 5325
  • Thread Quantity Per Inch: 11
  • Length: 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
  • Thread Series Designator: UNJC
  • Style Designator: KEYLOCK
  • Nominal Thread Size: 0.6250 INCHES IN
  • Internal Thread Relief Depth: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
  • Material: IRON ALLOY 660 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Iron Alloy 660 Overall construction
General Description

The Insert,screw Thread, cataloged under National Stock Number 5325-01-371-0904, is classified within Federal Supply Class 5325 (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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN5325-01-371-0904
Primary Part NumberMIL-I-45914
Item NameInsert,screw Thread
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Quantity Per Inch11
Length0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
Thread Series DesignatorUNJC
Style DesignatorKEYLOCK
Nominal Thread Size0.6250 INCHES IN
Internal Thread Relief Depth0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
MaterialIRON ALLOY 660 OVERALL
Thread Length0.775 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Surface Treatment Document and ClassificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Full Internal Thread Length0.775 INCHES NOMINAL IN
Material Document and ClassificationAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Thread Class3B
Insert Size0.875-14 UNF 2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5325-00-216-0314 INTERCHANGEABLE
Insert,screw Thread
5325-01-191-2795 INTERCHANGEABLE
Insert,screw Thread
5325-01-365-1220 INTERCHANGEABLE
Insert,screw Thread
5325-01-380-6424 INTERCHANGEABLE
Insert,screw Thread
Cross-Reference Index
Part NumberManufacturer
MIL-I-45914 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51831CA108 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5325-00-216-0314INTERCHANGEABLE
INSERT,SCREW THREAD
5325-01-191-2795INTERCHANGEABLE
INSERT,SCREW THREAD
5325-01-365-1220INTERCHANGEABLE
INSERT,SCREW THREAD
5325-01-380-6424INTERCHANGEABLE
INSERT,SCREW THREAD

Frequently Asked Questions

What is NSN 5325-01-371-0904?

NSN 5325-01-371-0904 is a Insert,screw Thread, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-371-0904?

NSN 5325-01-371-0904 has 2 cross-referenced part numbers: MIL-I-45914 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS51831CA108 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5325-01-371-0904?

There are 4 known substitutes for 5325-01-371-0904: 5325-00-216-0314, 5325-01-191-2795, 5325-01-365-1220 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-I-45914?

Key specifications for MIL-I-45914: Thread Quantity Per Inch: 11; Length: 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN; Thread Series Designator: UNJC; Style Designator: KEYLOCK. 15 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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