PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R-529 PIECE 20Nut,plain,hexagon

Circor Naval Solutions Llc Dba Warren Pumps · NSN 5310-00-509-8325 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-509-8325 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-509-8325. Primary manufacturer part number: R-529 PIECE 20.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Thread Series: UNF
  • Hole Thread Quantity Per Inch: 20
  • Nominal Thread Size: 1.250 INCHES IN
  • Bearing Surface Finish: 125.0 MICROINCHES
  • Thread Quantity Per Inch: 12
  • Bearing Surface Type: FLAT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-509-8325, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-509-8325
Primary Part NumberR-529 PIECE 20
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread SeriesUNF
Hole Thread Quantity Per Inch20
Nominal Thread Size1.250 INCHES IN
Bearing Surface Finish125.0 MICROINCHES
Thread Quantity Per Inch12
Bearing Surface TypeFLAT
Hole Configuration StyleCONFIGURATION H
Hole Nominal Thread Diameter0.250 INCHES IN
Nut StyleHEXAGON
MaterialNICKEL ALLOY OVERALL
Material Document and ClassificationMIL-N-894 CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Class2B
Nut Height0.625 INCHES NOMINAL IN
Hole Type and Quantity1 TAPPED
Width Across Flats2.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4510-00-477-823912-384 INTERCHANGEABLE
Lavatory
Gerber Plumbing Fixtures Llc
5905-00-855-5300F124 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5910-01-043-4309 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
5305-01-325-8388MS90725-113 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
F-124 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R-529 PIECE 20 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
R-529 PIECE 70 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
4510-00-477-8239INTERCHANGEABLE
LAVATORY
12-384
5905-00-855-5300INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
F124
5910-01-043-4309INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5305-01-325-8388INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS90725-113

Frequently Asked Questions

What is NSN 5310-00-509-8325?

NSN 5310-00-509-8325 is a Nut,plain,hexagon, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-509-8325?

NSN 5310-00-509-8325 has 3 cross-referenced part numbers: F-124 (Circor Naval Solutions Llc Dba Warren Pumps), R-529 PIECE 20 (Circor Naval Solutions Llc Dba Warren Pumps), R-529 PIECE 70 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 5310-00-509-8325?

There are 4 known substitutes for 5310-00-509-8325: 4510-00-477-8239, 5905-00-855-5300, 5910-01-043-4309 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R-529 PIECE 20?

Key specifications for R-529 PIECE 20: Thread Direction: RIGHT-HAND; Thread Series: UNF; Hole Thread Quantity Per Inch: 20; Nominal Thread Size: 1.250 INCHES IN. 16 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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