PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

555-55Nut,plain,hexagon

Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc · NSN 5310-00-372-8834 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-372-8834 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-372-8834. Primary manufacturer part number: 555-55.
Features
  • Nut,plain,hexagon — FSC 5310
  • Hole Type and Quantity: 2 DRILLED
  • Thread Series: UNF
  • Hole Configuration Style: CONFIGURATION B
  • Bearing Surface Type: FLAT
  • Nominal Thread Size: 0.438 INCHES IN
  • Thread Quantity Per Inch: 20
  • Nut Style: HEXAGON
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-372-8834, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-372-8834
Primary Part Number555-55
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMas Components & Coatings, Llc Dba Mas Components & Coatings Llc
StatusACTIVE
Hole Type and Quantity2 DRILLED
Thread SeriesUNF
Hole Configuration StyleCONFIGURATION B
Bearing Surface TypeFLAT
Nominal Thread Size0.438 INCHES IN
Thread Quantity Per Inch20
Nut StyleHEXAGON
Thread Class3B
Nut Height0.219 INCHES NOMINAL IN
Width Across Flats0.295 INCHES NOMINAL IN
Drilled Hole Diameter0.038 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Material Document and Classification555-55,FSCM 93712 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5340-00-318-638955555 INTERCHANGEABLE
Clevis,rod End
Eaton Aerospace, Llc Dba Jackson South
5950-00-401-654755555 INTERCHANGEABLE
Transformer,electrical
Holt Instrument Laboratories, Llc Dba Holt Instrument Division Div Holt Instrument Laboratories
4820-01-104-06116181-177-1 INTERCHANGEABLE
Valve,globe
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
1560-01-533-929555555 INTERCHANGEABLE
Cowling
Aerovironment, Inc. Dba Aerovironment Inc
5935-01-729-433355555 INTERCHANGEABLE
Cover,electrical Connector
Logos Imaging Llc
Cross-Reference Index
Part NumberManufacturer
555-55 PRIMARY Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc (USA)
555-55 Alliant Defense Electronics Systems Inc Dba Lundy Technical Center (USA)
555-55 Kilgore Flares Company Llc (USA)
Related Parts
5340-00-318-6389INTERCHANGEABLE
CLEVIS,ROD END
55555
5950-00-401-6547INTERCHANGEABLE
TRANSFORMER,ELECTRICAL
55555
4820-01-104-0611INTERCHANGEABLE
VALVE,GLOBE
6181-177-1
1560-01-533-9295INTERCHANGEABLE
COWLING
55555
5935-01-729-4333INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
55555

Frequently Asked Questions

What is NSN 5310-00-372-8834?

NSN 5310-00-372-8834 is a Nut,plain,hexagon, manufactured by Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-372-8834?

NSN 5310-00-372-8834 has 3 cross-referenced part numbers: 555-55 (Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc), 555-55 (Alliant Defense Electronics Systems Inc Dba Lundy Technical Center), 555-55 (Kilgore Flares Company Llc).

What NSN replaces 5310-00-372-8834?

There are 5 known substitutes for 5310-00-372-8834: 5340-00-318-6389, 5950-00-401-6547, 4820-01-104-0611 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 555-55?

Key specifications for 555-55: Hole Type and Quantity: 2 DRILLED; Thread Series: UNF; Hole Configuration Style: CONFIGURATION B; Bearing Surface Type: FLAT. 15 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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