PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BS4-1666PC39Nut,plain,round

Circor Naval Solutions Llc Dba Warren Pumps · NSN 5310-00-275-6694 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-275-6694 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-275-6694. Primary manufacturer part number: BS4-1666PC39.
Features
  • Nut,plain,round — FSC 5310
  • Drive Point Diameter: 0.281 INCHES NOMINAL IN
  • Hole Configuration Style: CONFIGURATION J
  • Thread Quantity Per Inch: 14
  • Thread Series: UNF
  • Nominal Thread Size: 0.875 INCHES IN
  • Hole Type and Quantity: 1 DRILLED
  • Drive Point Depth: 0.281 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1115 or Steel Comp 1117 or Steel Comp 1118 or Steel Comp 1120 Overall construction
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-00-275-6694, 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 8 commercial cross-references from 2 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
NSN5310-00-275-6694
Primary Part NumberBS4-1666PC39
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Drive Point Diameter0.281 INCHES NOMINAL IN
Hole Configuration StyleCONFIGURATION J
Thread Quantity Per Inch14
Thread SeriesUNF
Nominal Thread Size0.875 INCHES IN
Hole Type and Quantity1 DRILLED
Drive Point Depth0.281 INCHES NOMINAL IN
Material Document and ClassificationQQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
Nut StyleROUND
Drilled Hole Diameter0.562 INCHES NOMINAL IN
Thread Class3B
Thread DirectionRIGHT-HAND
Nut Thickness0.562 INCHES NOMINAL IN
Drive Point Quantity2
Nut Diameter2.188 INCHES NOMINAL IN
MaterialSTEEL COMP 1115 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1120 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3020-00-585-5410Q2-3 INTERCHANGEABLE
Gear,worm
Roller Bearing Co of America, Inc Div Pic Design
5330-00-965-0756574-7804-812611REVA17 INTERCHANGEABLE
Packing,preformed
Naval Ship Systems Command
6685-01-522-5295QU500 INTERCHANGEABLE
Control,temperature,indicating
Ocean Breeze AC, Llc Dba Ocean Breeze AC
Cross-Reference Index
Part NumberManufacturer
BS5-1669PC39 Circor Naval Solutions Llc Dba Warren Pumps (USA)
55-22313-46 Euramco Safety Inc (USA)
Q23 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS4-1432PC39-130 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS4-1666PC39 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-1881PC39-130 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-1435PC39-130 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS4-1878PC39-130 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
3020-00-585-5410INTERCHANGEABLE
GEAR,WORM
Q2-3
5330-00-965-0756INTERCHANGEABLE
PACKING,PREFORMED
574-7804-812611REVA17
6685-01-522-5295INTERCHANGEABLE
CONTROL,TEMPERATURE,INDICATING
QU500

Frequently Asked Questions

What is NSN 5310-00-275-6694?

NSN 5310-00-275-6694 is a Nut,plain,round, 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 5310-00-275-6694?

NSN 5310-00-275-6694 has 8 cross-referenced part numbers: BS5-1669PC39 (Circor Naval Solutions Llc Dba Warren Pumps), 55-22313-46 (Euramco Safety Inc), Q23 (Circor Naval Solutions Llc Dba Warren Pumps), BS4-1432PC39-130 (Circor Naval Solutions Llc Dba Warren Pumps), BS4-1666PC39 (Circor Naval Solutions Llc Dba Warren Pumps) and 3 more.

What NSN replaces 5310-00-275-6694?

There are 3 known substitutes for 5310-00-275-6694: 3020-00-585-5410, 5330-00-965-0756, 6685-01-522-5295. Verify interchangeability with system specifications before substitution.

What are the specifications of BS4-1666PC39?

Key specifications for BS4-1666PC39: Drive Point Diameter: 0.281 INCHES NOMINAL IN; Hole Configuration Style: CONFIGURATION J; Thread Quantity Per Inch: 14; Thread Series: UNF. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com