PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6511637-1Nut,sheet Spring

Naval Sea Systems Command · NSN 5310-00-815-9961 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-815-9961 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-815-9961. Primary manufacturer part number: 6511637-1.
Features
  • Nut,sheet Spring — FSC 5310
  • Material Thickness: 0.030 INCHES MAXIMUM IN
  • Nut Length: 0.625 INCHES NOMINAL IN
  • Nut Style: SHEET SPRING
  • Nut Width: 0.625 INCHES NOMINAL IN
  • Mating Member Diameter Accommodated: 0.216 INCHES NOMINAL IN
  • Panel Thickness: 0.078 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Nut,sheet Spring, cataloged under National Stock Number 5310-00-815-9961, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-815-9961
Primary Part Number6511637-1
Item NameNut,sheet Spring
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Material Thickness0.030 INCHES MAXIMUM IN
Nut Length0.625 INCHES NOMINAL IN
Nut StyleSHEET SPRING
Nut Width0.625 INCHES NOMINAL IN
Mating Member Diameter Accommodated0.216 INCHES NOMINAL IN
Panel Thickness0.078 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4030-00-163-0792RRC271 INTERCHANGEABLE
Hook,slip
Koehlke Components Inc
4730-00-555-82632AG180 INTERCHANGEABLE
Clamp,hose
Oshkosh Defense Llc
6105-01-307-9868 INTERCHANGEABLE
Motor,alternating Current
4530-01-692-5863H-191 INTERCHANGEABLE
Burner,oil,pressure Atomizing
Selas Heat Technology Company Llc Dba Selas Heat Technology Co Llc Div Selas Heat Technology
5995-01-734-9936H-191 INTERCHANGEABLE
Cable Assembly Set,electrical
Interface Inc.
Cross-Reference Index
Part NumberManufacturer
H19-1 Ims Engineered Products Llc (USA)
6511637-1 PRIMARY Naval Sea Systems Command (USA)
Related Parts
4030-00-163-0792INTERCHANGEABLE
HOOK,SLIP
RRC271
4730-00-555-8263INTERCHANGEABLE
CLAMP,HOSE
2AG180
6105-01-307-9868INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
4530-01-692-5863INTERCHANGEABLE
BURNER,OIL,PRESSURE ATOMIZING
H-191
5995-01-734-9936INTERCHANGEABLE
CABLE ASSEMBLY SET,ELECTRICAL
H-191

Frequently Asked Questions

What is NSN 5310-00-815-9961?

NSN 5310-00-815-9961 is a Nut,sheet Spring, manufactured by Naval Sea Systems Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-815-9961?

NSN 5310-00-815-9961 has 2 cross-referenced part numbers: H19-1 (Ims Engineered Products Llc), 6511637-1 (Naval Sea Systems Command).

What NSN replaces 5310-00-815-9961?

There are 5 known substitutes for 5310-00-815-9961: 4030-00-163-0792, 4730-00-555-8263, 6105-01-307-9868 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6511637-1?

Key specifications for 6511637-1: Material Thickness: 0.030 INCHES MAXIMUM IN; Nut Length: 0.625 INCHES NOMINAL IN; Nut Style: SHEET SPRING; Nut Width: 0.625 INCHES NOMINAL IN. 8 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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