PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H57Cover,access

The Gorman-Rupp Company Div Gorman-Rupp · NSN 5340-00-136-8661 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-136-8661 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-136-8661. Primary manufacturer part number: H57.
Features
  • Cover,access — FSC 5340
  • Second Recess Inside Height: 0.906 INCHES NOMINAL IN
  • Body Outside Radius: 0.125 INCHES NOMINAL IN
  • Bolt Circle Diameter: 2.875 INCHES NOMINAL IN
  • Outside Corner Radius: 0.031 INCHES NOMINAL IN
  • Bolt Circle Hole Quantity: 4
  • First Recess Inside Height: 0.562 INCHES NOMINAL IN
  • Inside Corner Radius: 0.031 INCHES NOMINAL IN
Applications
  • Applications requiring Steel and Plastic construction
General Description

The Cover,access, cataloged under National Stock Number 5340-00-136-8661, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Gorman-Rupp Company Div Gorman-Rupp. Government technical data includes 18 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-136-8661
Primary Part NumberH57
Item NameCover,access
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerThe Gorman-Rupp Company Div Gorman-Rupp
StatusACTIVE
Second Recess Inside Height0.906 INCHES NOMINAL IN
Body Outside Radius0.125 INCHES NOMINAL IN
Bolt Circle Diameter2.875 INCHES NOMINAL IN
Outside Corner Radius0.031 INCHES NOMINAL IN
Bolt Circle Hole Quantity4
First Recess Inside Height0.562 INCHES NOMINAL IN
Inside Corner Radius0.031 INCHES NOMINAL IN
Peripheral Shape StyleROUND, MULTI HOLES
Cross-Sectional Shape StyleCIRCULAR RECESS
Inside Diameter3.250 INCHES NOMINAL IN
Surface TreatmentCADMIUM
MaterialSTEEL AND PLASTIC
First Recess Diameter4.875 INCHES NOMINAL IN
Body Thickness0.125 INCHES NOMINAL IN
Mounting Opening Shape StyleTHREADED HOLE
Outside Diameter6.500 INCHES NOMINAL IN
Securing Device TypeTHREADED FASTENER
Flange Thickness0.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
5930-00-566-5237H5-7 INTERCHANGEABLE
Switch,sensitive
Safran Power Usa, Llc
5950-00-705-48639976090-5 INTERCHANGEABLE
Transformer,pulse
Us Army Aviation and Missile Command
2825-00-900-378757W INTERCHANGEABLE
Weight,governor
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Cross-Reference Index
Part NumberManufacturer
H57 PRIMARY The Gorman-Rupp Company Div Gorman-Rupp (USA)
Related Parts
5930-00-566-5237INTERCHANGEABLE
SWITCH,SENSITIVE
H5-7
5950-00-705-4863INTERCHANGEABLE
TRANSFORMER,PULSE
9976090-5
2825-00-900-3787INTERCHANGEABLE
WEIGHT,GOVERNOR
57W

Frequently Asked Questions

What is NSN 5340-00-136-8661?

NSN 5340-00-136-8661 is a Cover,access, manufactured by The Gorman-Rupp Company Div Gorman-Rupp, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-136-8661?

NSN 5340-00-136-8661 has 1 cross-referenced part number: H57 (The Gorman-Rupp Company Div Gorman-Rupp).

What NSN replaces 5340-00-136-8661?

There are 3 known substitutes for 5340-00-136-8661: 5930-00-566-5237, 5950-00-705-4863, 2825-00-900-3787. Verify interchangeability with system specifications before substitution.

What are the specifications of H57?

Key specifications for H57: Second Recess Inside Height: 0.906 INCHES NOMINAL IN; Body Outside Radius: 0.125 INCHES NOMINAL IN; Bolt Circle Diameter: 2.875 INCHES NOMINAL IN; Outside Corner Radius: 0.031 INCHES NOMINAL IN. 19 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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