PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4091Nut,plain,knurled

Roller Bearing Co of America, Inc Div Pic Design · NSN 5310-00-682-5737 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-682-5737 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-682-5737. Primary manufacturer part number: 4091.
Features
  • Nut,plain,knurled — FSC 5310
  • Nut Counterbore Depth: 0.250 INCHES NOMINAL NUT IN
  • Nut Style: KNURLED
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Material Document and Classification: QQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Nut Thickness: 0.750 INCHES NOMINAL IN
  • Nut Diameter: 0.750 INCHES NOMINAL IN
  • Small End Diameter: 0.500 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Nut,plain,knurled, cataloged under National Stock Number 5310-00-682-5737, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-682-5737
Primary Part Number4091
Item NameNut,plain,knurled
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRoller Bearing Co of America, Inc Div Pic Design
StatusCANCELLED
Nut Counterbore Depth0.250 INCHES NOMINAL NUT IN
Nut StyleKNURLED
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationQQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nut Thickness0.750 INCHES NOMINAL IN
Nut Diameter0.750 INCHES NOMINAL IN
Small End Diameter0.500 INCHES NOMINAL IN
Small End Length0.500 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Nominal Thread Size0.250 INCHES IN
Thread Class3B
Thread Quantity Per Inch20
Counterbore Diameter0.266 INCHES NOMINAL NUT IN
Knurl Width0.250 INCHES NOMINAL IN
MaterialSTEEL COMP 303 OVERALL
Surface TreatmentPASSIVATE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
9540-00-251-3096 INTERCHANGEABLE
Angle,structural
9540-00-261-5099 INTERCHANGEABLE
Angle,structural
5950-00-645-8235SC-C-65782 INTERCHANGEABLE
Transformer,power
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
9540-00-727-853722885 INTERCHANGEABLE
Angle,structural
Aluminum Co of America
5355-00-964-40454091 INTERCHANGEABLE
Pointer,dial
Wakmann Watch Company Inc
5310-01-322-14404091 INTERCHANGEABLE
Washer,flat
Technipower Llc Dba Unipower
Cross-Reference Index
Part NumberManufacturer
4091 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
C318009888 Kearfott Corporation Div Guidance and Navigation Division (USA)
40D91 Allied Devices Corp Dba Absolute Precision Co (USA)
9172552 PRIMARY Us Army Aviation and Missile Command (USA)
Related Parts
9540-00-251-3096INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-261-5099INTERCHANGEABLE
ANGLE,STRUCTURAL
5950-00-645-8235INTERCHANGEABLE
TRANSFORMER,POWER
SC-C-65782
9540-00-727-8537INTERCHANGEABLE
ANGLE,STRUCTURAL
22885
5355-00-964-4045INTERCHANGEABLE
POINTER,DIAL
4091
5310-01-322-1440INTERCHANGEABLE
WASHER,FLAT
4091

Frequently Asked Questions

What is NSN 5310-00-682-5737?

NSN 5310-00-682-5737 is a Nut,plain,knurled, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-682-5737?

NSN 5310-00-682-5737 has 4 cross-referenced part numbers: 4091 (Roller Bearing Co of America, Inc Div Pic Design), C318009888 (Kearfott Corporation Div Guidance and Navigation Division), 40D91 (Allied Devices Corp Dba Absolute Precision Co), 9172552 (Us Army Aviation and Missile Command).

What NSN replaces 5310-00-682-5737?

There are 6 known substitutes for 5310-00-682-5737: 9540-00-251-3096, 9540-00-261-5099, 5950-00-645-8235 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4091?

Key specifications for 4091: Nut Counterbore Depth: 0.250 INCHES NOMINAL NUT IN; Nut Style: KNURLED; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-682-5737 still in active supply?

NSN 5310-00-682-5737 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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