PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AT6880Nut,plain,octagon

American Trailers Inc · NSN 5310-00-275-0703 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-275-0703 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-275-0703. Primary manufacturer part number: AT6880.
Features
  • Nut,plain,octagon — FSC 5310
  • Nut Style: PLAIN, OCTAGON
  • Features Provided: CASEHARDENED
  • Hole Configuration Style: CONFIGURATION H
  • Thread Series: UN
  • Bearing Surface Type: CHAMFERED
  • Thread Quantity Per Inch: 16
  • Nominal Thread Size: 2.625 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,octagon, cataloged under National Stock Number 5310-00-275-0703, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is American Trailers Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 34 commercial cross-references from 32 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
NSN5310-00-275-0703
Primary Part NumberAT6880
Item NameNut,plain,octagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAmerican Trailers Inc
StatusCANCELLED
Nut StylePLAIN, OCTAGON
Features ProvidedCASEHARDENED
Hole Configuration StyleCONFIGURATION H
Thread SeriesUN
Bearing Surface TypeCHAMFERED
Thread Quantity Per Inch16
Nominal Thread Size2.625 INCHES IN
Thread DirectionRIGHT-HAND
MaterialSTEEL OVERALL
Hole Type and Quantity1 DRILLED
Nut Height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Thread Class3B
Width Across Flats3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN
Drilled Hole Diameter0.257 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
6680-00-352-659751566 INTERCHANGEABLE
Shaft Assembly,flexible
Fwd Seagrave Holdings Lp
4920-00-847-8675 INTERCHANGEABLE
Stabilizing Bar
5340-00-969-6407MS35812-1 INTERCHANGEABLE
Clevis,rod End
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5930-01-103-7495 INTERCHANGEABLE
Switch
4330-01-274-845851566 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
3040-01-569-657451566 INTERCHANGEABLE
Shaft Assembly,flexible
Jtekt Column Systems North America Corporation Div Jtekt Column Systems North Amercia
Cross-Reference Index
Part NumberManufacturer
AT6880 Watson H S Co (USA)
AT6880 Lufkin Industries, Inc. Dba Power Transmission (USA)
AT6880 Gerstenlager Co the (USA)
6046F Diamond Reo Truck Co (USA)
51566 Fruehauf Corp (USA)
AT6880 PRIMARY American Trailers Inc (USA)
AT6880 Kaitlin Corp (USA)
5310002750703 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
TAT6880 Minnpar, Llc Dba Minnpar (USA)
AT6880 PRIMARY Kenworth Truck Co a Div of Paccar Inc (USA)
AT6880 Timpte Inc (USA)
AT6880 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
AT6880 Strick Trailer Co (USA)
11A2089 PRIMARY Napco International Llc Dba Napco International Inc (USA)
AT6880 Meritor Heavy Vehicle Systems, Llc (USA)
TAT6880 Barber-Greene Co (USA)
AT6880 PRIMARY Utility Trailer Mfg Co (USA)
AT6880 Miller Trailers Inc (USA)
AT6880 Gentry Body and Trailer Co (USA)
4D0550 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
Related Parts
6680-00-352-6597INTERCHANGEABLE
SHAFT ASSEMBLY,FLEXIBLE
51566
4920-00-847-8675INTERCHANGEABLE
STABILIZING BAR
5340-00-969-6407INTERCHANGEABLE
CLEVIS,ROD END
MS35812-1
5930-01-103-7495INTERCHANGEABLE
SWITCH
4330-01-274-8458INTERCHANGEABLE
FILTER ELEMENT,FLUID
51566
3040-01-569-6574INTERCHANGEABLE
SHAFT ASSEMBLY,FLEXIBLE
51566

Frequently Asked Questions

What is NSN 5310-00-275-0703?

NSN 5310-00-275-0703 is a Nut,plain,octagon, manufactured by American Trailers Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-275-0703?

NSN 5310-00-275-0703 has 34 cross-referenced part numbers: AT6880 (Watson H S Co), AT6880 (Lufkin Industries, Inc. Dba Power Transmission), AT6880 (Gerstenlager Co the), 6046F (Diamond Reo Truck Co), 51566 (Fruehauf Corp) and 29 more.

What NSN replaces 5310-00-275-0703?

There are 6 known substitutes for 5310-00-275-0703: 6680-00-352-6597, 4920-00-847-8675, 5340-00-969-6407 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AT6880?

Key specifications for AT6880: Nut Style: PLAIN, OCTAGON; Features Provided: CASEHARDENED; Hole Configuration Style: CONFIGURATION H; Thread Series: UN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-275-0703 still in active supply?

NSN 5310-00-275-0703 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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