PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G9981PC80Nut,plain,round

Circor Pumps North America Llc · NSN 5310-00-185-6460 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-185-6460 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-185-6460. Primary manufacturer part number: G9981PC80.
Features
  • Nut,plain,round — FSC 5310
  • Drive Point Depth: 0.125 INCHES NOMINAL IN
  • Thread Pitch Diameters: +2.1209 TO 2.1260 INCHES IN
  • Thread Quantity Per Inch: 18
  • Nominal Thread Size: 2.157 INCHES IN
  • Thread Series: UNS
  • Hardness Rating: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
  • Nut Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 or Steel Comp 1021 or Steel Comp 1023 or Steel Comp 1524 or Steel Comp 1025 or Steel Comp 1026 or Steel Comp 1527 or Steel Comp 1030 or Steel Comp 1033 or Steel Comp 1034 or Steel Comp 1035 Overall construction
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-00-185-6460, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Pumps North America Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 25 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-185-6460
Primary Part NumberG9981PC80
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCircor Pumps North America Llc
StatusCANCELLED
Drive Point Depth0.125 INCHES NOMINAL IN
Thread Pitch Diameters+2.1209 TO 2.1260 INCHES IN
Thread Quantity Per Inch18
Nominal Thread Size2.157 INCHES IN
Thread SeriesUNS
Hardness Rating66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
Nut StyleROUND
Nut Diameter2.948 INCHES MINIMUM AND 2.978 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Drive Point Quantity4
Nut Thickness0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
MaterialSTEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1527 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL
Drive Point Width0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6105-00-078-2558125-017 INTERCHANGEABLE
Motor-Tachometer Generator
Mpc Products Corporation Dba Woodward Mpc, Inc.
6145-00-105-80298077 INTERCHANGEABLE
Wire,electrical
Belden Wire and Cable Co Wire and Cable Office
5340-00-168-72731.250-17 INTERCHANGEABLE
Cap,protective,dust and Moisture
Sinclair & Rush, Inc. Dba Sinclair & Rush Inc
6625-00-169-1471 INTERCHANGEABLE
Resistance Standard
5310-00-186-9341 INTERCHANGEABLE
Nut,self-Locking,wing
3040-00-188-8653K1-9 INTERCHANGEABLE
Hub,body
Roller Bearing Co of America, Inc Div Pic Design
5945-00-201-8667P015194 INTERCHANGEABLE
Relay,electromagnetic
Ricoh Americas Corporation
5340-00-285-65237849937P001 INTERCHANGEABLE
Padlock
Lockheed Martin Corporation Div Rms
5310-00-285-75928077 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Brinkley Technology Group Llc Dba Hercules Manufacturing
4540-00-394-9003 INTERCHANGEABLE
Disc,center
Cross-Reference Index
Part NumberManufacturer
G9981PC80 Circor Pumps North America Llc (USA)
322660PC125 Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
N11 Usm Corp Sub of Emhart Industries Inc Farrel Co Div (USA)
SG2572PC93 Siemens Energy, Inc. (USA)
SG2861PC29 Circor Pumps North America Llc (USA)
185299-61 Ingersoll Rand Co (USA)
N11 Murray Div of the Trane Co (USA)
SG2843PC29 Siemens Energy, Inc. (USA)
SG2715PC29 Circor Pumps North America Llc (USA)
5430D671PC74 Bae Systems Land & Armaments L.p. (USA)
322661PC125 Capitol Gears Inc
G9814PC56 Siemens Energy, Inc. (USA)
EC6031B Hercules Engine Co Inc (USA)
WW6648233PC30 General Electric Company (USA)
189132PC624 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
185291PC61 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
3150-3PC26 Tuthill Corporation Dba Tuthill Vac & Blower Systems Div Tuthill Vacuum Systems (USA)
186600PC61 Ingersoll Rand Co (USA)
G7895PC80 Siemens Energy, Inc. (USA)
M2012J Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
6105-00-078-2558INTERCHANGEABLE
MOTOR-TACHOMETER GENERATOR
125-017
6145-00-105-8029INTERCHANGEABLE
WIRE,ELECTRICAL
8077
5340-00-168-7273INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
1.250-17
6625-00-169-1471INTERCHANGEABLE
RESISTANCE STANDARD
5310-00-186-9341INTERCHANGEABLE
NUT,SELF-LOCKING,WING
3040-00-188-8653INTERCHANGEABLE
HUB,BODY
K1-9
5945-00-201-8667INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
P015194
5340-00-285-6523INTERCHANGEABLE
PADLOCK
7849937P001
5310-00-285-7592INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
8077
4540-00-394-9003INTERCHANGEABLE
DISC,CENTER
5330-00-420-5856INTERCHANGEABLE
PACKING,PREFORMED
125017
5999-00-503-1593INTERCHANGEABLE
HEATER,THERMAL RELEASE
N34

Frequently Asked Questions

What is NSN 5310-00-185-6460?

NSN 5310-00-185-6460 is a Nut,plain,round, manufactured by Circor Pumps North America Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-185-6460?

NSN 5310-00-185-6460 has 50 cross-referenced part numbers: G9981PC80 (Circor Pumps North America Llc), 322660PC125 (Brinkley Technology Group Llc Dba Hercules Manufacturing), N11 (Usm Corp Sub of Emhart Industries Inc Farrel Co Div), SG2572PC93 (Siemens Energy, Inc.), SG2861PC29 (Circor Pumps North America Llc) and 45 more.

What NSN replaces 5310-00-185-6460?

There are 12 known substitutes for 5310-00-185-6460: 6105-00-078-2558, 6145-00-105-8029, 5340-00-168-7273 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G9981PC80?

Key specifications for G9981PC80: Drive Point Depth: 0.125 INCHES NOMINAL IN; Thread Pitch Diameters: +2.1209 TO 2.1260 INCHES IN; Thread Quantity Per Inch: 18; Nominal Thread Size: 2.157 INCHES IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-185-6460 still in active supply?

NSN 5310-00-185-6460 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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