PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

557382Nut,plain,round

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-011-2656 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-011-2656 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-011-2656. Primary manufacturer part number: 557382.
Features
  • Nut,plain,round — FSC 5310
  • Nut Diameter: 1.145 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN
  • Thread Class: 3B
  • Nut Thickness: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
  • Drive Point Quantity: 9
  • Small End Diameter: 1.045 INCHES MINIMUM AND 1.055 INCHES MAXIMUM IN
  • Drive Point Depth: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
  • Drive Point Width: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-00-011-2656, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-011-2656
Primary Part Number557382
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Nut Diameter1.145 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN
Thread Class3B
Nut Thickness0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Drive Point Quantity9
Small End Diameter1.045 INCHES MINIMUM AND 1.055 INCHES MAXIMUM IN
Drive Point Depth0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
Drive Point Width0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
1660-00-024-612355732 INTERCHANGEABLE
Retainer Assembly,c
Honeywell International Inc. Div Aerospace - Torrance
5310-00-621-31458526471 INTERCHANGEABLE
Washer,flat
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
557382 Kito Mfg Co. Ltd (JPN)
55732 Precision Speed Manufacturing, Llc (USA)
557382 Kito Mfg Co. Ltd (JPN)
557382 Alliant Techsystems Inc (USA)
557382 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
557382 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
Related Parts
1660-00-024-6123INTERCHANGEABLE
RETAINER ASSEMBLY,C
55732
5310-00-621-3145INTERCHANGEABLE
WASHER,FLAT
8526471

Frequently Asked Questions

What is NSN 5310-00-011-2656?

NSN 5310-00-011-2656 is a Nut,plain,round, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-011-2656?

NSN 5310-00-011-2656 has 6 cross-referenced part numbers: 557382 (Kito Mfg Co. Ltd), 55732 (Precision Speed Manufacturing, Llc), 557382 (Kito Mfg Co. Ltd), 557382 (Alliant Techsystems Inc), 557382 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 1 more.

What NSN replaces 5310-00-011-2656?

There are 2 known substitutes for 5310-00-011-2656: 1660-00-024-6123, 5310-00-621-3145. Verify interchangeability with system specifications before substitution.

What are the specifications of 557382?

Key specifications for 557382: Nut Diameter: 1.145 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN; Thread Class: 3B; Nut Thickness: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Drive Point Quantity: 9. 8 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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