PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILB933TYPEBNut,plain,square

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-00-012-7797 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-7797 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-7797. Primary manufacturer part number: MILB933TYPEB.
Features
  • Nut,plain,square — FSC 5310
  • Nut Height: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
  • Width Across Flats: 0.423 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Quantity Per Inch: 28
  • Bearing Surface Type: FLAT
  • Thread Series: UNF
  • Surface Treatment: CADMIUM OR ZINC OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,square, cataloged under National Stock Number 5310-00-012-7797, is classified within Federal Supply Class 5310 (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 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-012-7797
Primary Part NumberMILB933TYPEB
Item NameNut,plain,square
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nut Height0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
Width Across Flats0.423 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
Nominal Thread Size0.250 INCHES IN
Thread Quantity Per Inch28
Bearing Surface TypeFLAT
Thread SeriesUNF
Surface TreatmentCADMIUM OR ZINC OVERALL
Thread DirectionRIGHT-HAND
MaterialSTEEL OVERALL
Thread Class2B
Nut StyleSQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-010-3101103101 INTERCHANGEABLE
Nut,plain,square
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-010-3102 INTERCHANGEABLE
Nut,plain,square
5310-00-010-3104103104 INTERCHANGEABLE
Nut,plain,square
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-010-3105103105 INTERCHANGEABLE
Nut,plain,square
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-011-4380114380 INTERCHANGEABLE
Nut,plain,square
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-011-5984 INTERCHANGEABLE
Nut,plain,square
5310-00-012-0399120399 INTERCHANGEABLE
Nut,plain,square
Us Army Aviation and Missile Command
5310-00-012-0611120611 INTERCHANGEABLE
Nut,plain,square
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-012-0619116219 INTERCHANGEABLE
Nut,plain,square
Am General Llc
5310-00-013-1395131395 INTERCHANGEABLE
Nut,plain,square
Chrysler Realty Company Llc Dba Daimler Chrysler
Cross-Reference Index
Part NumberManufacturer
MILB933TYPEB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-010-3101INTERCHANGEABLE
NUT,PLAIN,SQUARE
103101
5310-00-010-3102INTERCHANGEABLE
NUT,PLAIN,SQUARE
5310-00-010-3104INTERCHANGEABLE
NUT,PLAIN,SQUARE
103104
5310-00-010-3105INTERCHANGEABLE
NUT,PLAIN,SQUARE
103105
5310-00-011-4380INTERCHANGEABLE
NUT,PLAIN,SQUARE
114380
5310-00-011-5984INTERCHANGEABLE
NUT,PLAIN,SQUARE
5310-00-012-0399INTERCHANGEABLE
NUT,PLAIN,SQUARE
120399
5310-00-012-0611INTERCHANGEABLE
NUT,PLAIN,SQUARE
120611
5310-00-012-0619INTERCHANGEABLE
NUT,PLAIN,SQUARE
116219
5310-00-013-1395INTERCHANGEABLE
NUT,PLAIN,SQUARE
131395
5310-00-013-4532INTERCHANGEABLE
NUT,PLAIN,SQUARE
5310-00-021-8562INTERCHANGEABLE
NUT,PLAIN,SQUARE

Frequently Asked Questions

What is NSN 5310-00-012-7797?

NSN 5310-00-012-7797 is a Nut,plain,square, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-012-7797?

NSN 5310-00-012-7797 has 1 cross-referenced part number: MILB933TYPEB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-012-7797?

There are 12 known substitutes for 5310-00-012-7797: 5310-00-010-3101, 5310-00-010-3102, 5310-00-010-3104 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILB933TYPEB?

Key specifications for MILB933TYPEB: Nut Height: 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN; Width Across Flats: 0.423 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN; Nominal Thread Size: 0.250 INCHES IN; Thread Quantity Per Inch: 28. 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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