PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4122161Nut,plain,hexagon

Agco Corp Parts Opn · NSN 5310-00-012-2161 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-2161 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-2161. Primary manufacturer part number: 4122161.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Height: 0.156 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 28
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Series: UNF
  • Material Document and Classification: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Class: 3B
  • Material: STEEL OVERALL
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 5310-00-012-2161, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Agco Corp Parts Opn. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-012-2161
Primary Part Number4122161
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAgco Corp Parts Opn
StatusACTIVE
Nut Height0.156 INCHES NOMINAL IN
Thread Quantity Per Inch28
Nominal Thread Size0.250 INCHES IN
Thread SeriesUNF
Material Document and ClassificationQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Class3B
MaterialSTEEL OVERALL
Nut StyleHEXAGON
Width Across Flats0.438 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5998-00-145-303712216-1 INTERCHANGEABLE
Circuit Card Assembly
Celtech Corporation Div Use CAGE 65552 for All Orders
5310-00-297-8836P16598 INTERCHANGEABLE
Nut,plain,hexagon
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
5305-01-594-0822122161 INTERCHANGEABLE
Setscrew
Midmark Corporation Dba Midmark Corp
Cross-Reference Index
Part NumberManufacturer
122161 General Motors Llc Dba General Motors Llc (USA)
122161 Diamond Reo Truck Co (USA)
122161 Army Weapons Command Attn Amswe-Ree-S (USA)
4122161 PRIMARY Agco Corp Parts Opn (USA)
122161 General Motors Corp (USA)
FFB571TYPEA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5998-00-145-3037INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
12216-1
5310-00-297-8836INTERCHANGEABLE
NUT,PLAIN,HEXAGON
P16598
5305-01-594-0822INTERCHANGEABLE
SETSCREW
122161

Frequently Asked Questions

What is NSN 5310-00-012-2161?

NSN 5310-00-012-2161 is a Nut,plain,hexagon, manufactured by Agco Corp Parts Opn, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-012-2161?

NSN 5310-00-012-2161 has 6 cross-referenced part numbers: 122161 (General Motors Llc Dba General Motors Llc), 122161 (Diamond Reo Truck Co), 122161 (Army Weapons Command Attn Amswe-Ree-S), 4122161 (Agco Corp Parts Opn), 122161 (General Motors Corp) and 1 more.

What NSN replaces 5310-00-012-2161?

There are 3 known substitutes for 5310-00-012-2161: 5998-00-145-3037, 5310-00-297-8836, 5305-01-594-0822. Verify interchangeability with system specifications before substitution.

What are the specifications of 4122161?

Key specifications for 4122161: Nut Height: 0.156 INCHES NOMINAL IN; Thread Quantity Per Inch: 28; Nominal Thread Size: 0.250 INCHES IN; Thread Series: UNF. 10 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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