PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15-12-5Nut,plain,hexagon

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 5310-00-338-5921 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-338-5921 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-338-5921. Primary manufacturer part number: 15-12-5.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Quantity Per Inch: 20
  • Nut Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Nut Height: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: WASHER FACED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-338-5921, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.. Government technical data includes 11 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-338-5921
Primary Part Number15-12-5
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusACTIVE
Thread Quantity Per Inch20
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Nut Height0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
Nominal Thread Size0.250 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeWASHER FACED
Width Across Flats0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Thread Class2B
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-100-316115125 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5133-00-243-2213 INTERCHANGEABLE
Drill,twist
5310-00-383-448222621 INTERCHANGEABLE
Nut,self-Locking,hexagon
Industrial Technologies and Services Llc
3030-00-528-4630 INTERCHANGEABLE
Belt,v
5950-00-927-2979 INTERCHANGEABLE
Reactor
5930-01-158-242215125 INTERCHANGEABLE
Switch,pressure
Hydra-Electric Company Dba Hydra-Electric Co
8030-01-238-818515125 INTERCHANGEABLE
Metal Conditioning Compound
Birchwood Laboratories Llc
Cross-Reference Index
Part NumberManufacturer
15-12-5 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
3110-00-100-3161INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
15125
5133-00-243-2213INTERCHANGEABLE
DRILL,TWIST
5310-00-383-4482INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
22621
3030-00-528-4630INTERCHANGEABLE
BELT,V
5950-00-927-2979INTERCHANGEABLE
REACTOR
5930-01-158-2422INTERCHANGEABLE
SWITCH,PRESSURE
15125
8030-01-238-8185INTERCHANGEABLE
METAL CONDITIONING COMPOUND
15125

Frequently Asked Questions

What is NSN 5310-00-338-5921?

NSN 5310-00-338-5921 is a Nut,plain,hexagon, manufactured by Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-338-5921?

NSN 5310-00-338-5921 has 1 cross-referenced part number: 15-12-5 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 5310-00-338-5921?

There are 7 known substitutes for 5310-00-338-5921: 3110-00-100-3161, 5133-00-243-2213, 5310-00-383-4482 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15-12-5?

Key specifications for 15-12-5: Thread Quantity Per Inch: 20; Nut Style: HEXAGON; Thread Direction: RIGHT-HAND; Nut Height: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN. 11 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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