PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K1900-3Nut,self-Locking,plate

Howmet Global Fastening Systems Inc · NSN 5310-00-207-5258 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-207-5258 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-207-5258. Primary manufacturer part number: K1900-3.
Features
  • Nut,self-Locking,plate — FSC 5310
  • Nondefinitive Spec/std Data: 550 TYPE
  • Nut Mounting Provision: STRAIGHT HOLES
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Thread Direction: RIGHT-HAND
  • Thread Class: 38
  • Nut Length: 0.969 INCHES MAXIMUM IN
  • Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,plate, cataloged under National Stock Number 5310-00-207-5258, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 24 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-207-5258
Primary Part NumberK1900-3
Item NameNut,self-Locking,plate
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc
StatusACTIVE
Nondefinitive Spec/std Data550 TYPE
Nut Mounting ProvisionSTRAIGHT HOLES
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Thread DirectionRIGHT-HAND
Thread Class38
Nut Length0.969 INCHES MAXIMUM IN
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Center to Center Distance Between Mounting Holes Along Length0.686 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
Nut StylePLATE
LubricationDRY FILM LUBRICANT
Nut Height0.220 INCHES MAXIMUM IN
Plate Width0.300 INCHES MAXIMUM IN
Temp Rating450.0 FAHRENHEIT NOMINAL DEGF
Plate Thickness0.032 INCHES NOMINAL IN
Nominal Thread Size0.190 INCHES IN
Mounting Hole Arrangement Style2 HOLES
Counterbore Diameter0.194 INCHES MINIMUM NUT IN
Mounting Hole Diameter0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Nut Counterbore Depth0.062 INCHES MINIMUM NUT IN
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Distance From Aperture Center to Mounting Hole Center0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-01-332-4306 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Cross-Reference Index
Part NumberManufacturer
K1900-3 PRIMARY Howmet Global Fastening Systems Inc (USA)
W2SH1032 Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA)
MIL-N-25027 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5330-01-332-4306INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA

Frequently Asked Questions

What is NSN 5310-00-207-5258?

NSN 5310-00-207-5258 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-207-5258?

NSN 5310-00-207-5258 has 3 cross-referenced part numbers: K1900-3 (Howmet Global Fastening Systems Inc), W2SH1032 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace), MIL-N-25027 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-207-5258?

There is 1 known substitute for 5310-00-207-5258: 5330-01-332-4306. Verify interchangeability with system specifications before substitution.

What are the specifications of K1900-3?

Key specifications for K1900-3: Nondefinitive Spec/std Data: 550 TYPE; Nut Mounting Provision: STRAIGHT HOLES; Locking Feature: PREVAILING TORQUE ALL METAL DESIGN; Thread Direction: RIGHT-HAND. 24 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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