PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-2661Nut,plain,round

The Boeing Company Div Defense · NSN 5310-00-638-7160 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-638-7160 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-638-7160. Primary manufacturer part number: 30-2661.
Features
  • Nut,plain,round — FSC 5310
  • Nut Thickness: 0.710 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Undercut Thickness: 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • Thread Direction: RIGHT-HAND
  • Nut Diameter: 1.930 INCHES MINIMUM AND 1.970 INCHES MAXIMUM IN
  • Nut Style: ROUND
  • Hole Configuration Style: CONFIGURATION F
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4130 or Steel Comp 8630 Overall construction
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-00-638-7160, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN5310-00-638-7160
Primary Part Number30-2661
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Nut Thickness0.710 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Undercut Thickness0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Thread DirectionRIGHT-HAND
Nut Diameter1.930 INCHES MINIMUM AND 1.970 INCHES MAXIMUM IN
Nut StyleROUND
Hole Configuration StyleCONFIGURATION F
Thread SeriesUNF
Nominal Thread Size1.375 INCHES IN
Thread Quantity Per Inch12
MaterialSTEEL COMP 4130 OR STEEL COMP 8630 OVERALL
Hole Type and Quantity5 DRILLED
Small End Diameter1.560 INCHES NOMINAL IN
Drilled Hole Diameter0.136 INCHES NOMINAL IN
Drive Point Quantity4
Drive Point Depth0.150 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
Thread Class2B
Drive Point Width0.150 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
Countersink Angle88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM NUT
Material Document and ClassificationMIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4320-00-398-7919311848-00 INTERCHANGEABLE
Ring,wearing
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5315-01-331-9237 INTERCHANGEABLE
Pin,straight,headless
5940-01-347-484530-266-1 INTERCHANGEABLE
Splice,conductor
Bell Textron Inc
4810-01-574-0209302661 INTERCHANGEABLE
Parts Kit,solenoid Valve
Automatic Switch Company Dba Asco
Cross-Reference Index
Part NumberManufacturer
30-2661 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
4320-00-398-7919INTERCHANGEABLE
RING,WEARING
311848-00
5315-01-331-9237INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5940-01-347-4845INTERCHANGEABLE
SPLICE,CONDUCTOR
30-266-1
4810-01-574-0209INTERCHANGEABLE
PARTS KIT,SOLENOID VALVE
302661

Frequently Asked Questions

What is NSN 5310-00-638-7160?

NSN 5310-00-638-7160 is a Nut,plain,round, manufactured by The Boeing Company Div Defense, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-638-7160?

NSN 5310-00-638-7160 has 1 cross-referenced part number: 30-2661 (The Boeing Company Div Defense).

What NSN replaces 5310-00-638-7160?

There are 4 known substitutes for 5310-00-638-7160: 4320-00-398-7919, 5315-01-331-9237, 5940-01-347-4845 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-2661?

Key specifications for 30-2661: Nut Thickness: 0.710 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Undercut Thickness: 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OVERALL; Thread Direction: RIGHT-HAND. 20 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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