PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B4030373Nut,plain,hexagon

Department of the Army Hq United States Army Communications Research and Development Command · NSN 5310-01-218-1461 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-218-1461 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-218-1461. Primary manufacturer part number: B4030373.
Features
  • Nut,plain,hexagon — FSC 5310
  • Bearing Surface Type: FLAT
  • Thread Series: UNF
  • Thread Quantity Per Inch: 18
  • Nominal Thread Size: 0.625 INCHES IN
  • Nut Height: 0.380 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Class: 2B
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 752 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-218-1461, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Department of the Army Hq United States Army Communications Research and Development Command. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-218-1461
Primary Part NumberB4030373
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDepartment of the Army Hq United States Army Communications Research and Development Command
StatusACTIVE
Bearing Surface TypeFLAT
Thread SeriesUNF
Thread Quantity Per Inch18
Nominal Thread Size0.625 INCHES IN
Nut Height0.380 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Class2B
Width Across Flats1.250 INCHES NOMINAL IN
Nut StyleHEXAGON
Material Document and ClassificationQQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY 752 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-154-7701 INTERCHANGEABLE
Seal,plain Encased
6810-00-185-7059 INTERCHANGEABLE
Potassium Nitrate
5133-00-228-1375 INTERCHANGEABLE
Drill,twist
6625-00-567-482318-06042-1M INTERCHANGEABLE
Meter,multiple Scale
Ballantine Laboratories Inc
6505-00-664-0329101 INTERCHANGEABLE
Formaldehyde Solution
James Stewart Dba Diagnostic Reagents
3110-00-678-90603190 INTERCHANGEABLE
Bearing,ball,airframe
Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings
5935-00-724-5514KH-59-24 INTERCHANGEABLE
Connector,plug,electrical
Winchester Interconnect Corporation
5940-01-091-8323764104 INTERCHANGEABLE
Terminal,electrical
Eastman Kodak Co
5950-01-123-213613090444 INTERCHANGEABLE
Coil,radio Frequency
Us Army Aviation and Missile Command
5950-01-141-57713190 INTERCHANGEABLE
Coil
Hobart Brothers Llc
Cross-Reference Index
Part NumberManufacturer
3190 Penn-Union Corp Div Penn-Union Corp (USA)
B4030373 PRIMARY Department of the Army Hq United States Army Communications Research and Development Command (USA)
Related Parts
5330-00-154-7701INTERCHANGEABLE
SEAL,PLAIN ENCASED
6810-00-185-7059INTERCHANGEABLE
POTASSIUM NITRATE
5133-00-228-1375INTERCHANGEABLE
DRILL,TWIST
6625-00-567-4823INTERCHANGEABLE
METER,MULTIPLE SCALE
18-06042-1M
6505-00-664-0329INTERCHANGEABLE
FORMALDEHYDE SOLUTION
101
3110-00-678-9060INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3190
5935-00-724-5514INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
KH-59-24
5940-01-091-8323INTERCHANGEABLE
TERMINAL,ELECTRICAL
764104
5950-01-123-2136INTERCHANGEABLE
COIL,RADIO FREQUENCY
13090444
5950-01-141-5771INTERCHANGEABLE
COIL
3190
4510-01-193-7898INTERCHANGEABLE
WATER CLOSET
3-782
5325-01-252-8047INTERCHANGEABLE
RING,RETAINING
3190

Frequently Asked Questions

What is NSN 5310-01-218-1461?

NSN 5310-01-218-1461 is a Nut,plain,hexagon, manufactured by Department of the Army Hq United States Army Communications Research and Development Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-218-1461?

NSN 5310-01-218-1461 has 2 cross-referenced part numbers: 3190 (Penn-Union Corp Div Penn-Union Corp), B4030373 (Department of the Army Hq United States Army Communications Research and Development Command).

What NSN replaces 5310-01-218-1461?

There are 12 known substitutes for 5310-01-218-1461: 5330-00-154-7701, 6810-00-185-7059, 5133-00-228-1375 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B4030373?

Key specifications for B4030373: Bearing Surface Type: FLAT; Thread Series: UNF; Thread Quantity Per Inch: 18; Nominal Thread Size: 0.625 INCHES IN. 11 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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