PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-157340Cover,access

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5340-00-521-7181 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-521-7181 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-521-7181. Primary manufacturer part number: SM-B-157340.
Features
  • Cover,access — FSC 5340
  • Distance Between Holes Along Length: 0.3075 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: K-F-1103,CAGEC 80063 MFR REF SINGLE TREATMENT RESPONSE
  • Hole Quantity Along Length: 2
  • Length: 0.6875 INCHES NOMINAL IN
  • Surface Treatment: PHOSPHATE
  • Body Thickness: 0.120 INCHES NOMINAL IN
  • Material: STEEL
Applications
  • Applications requiring Steel construction
General Description

The Cover,access, cataloged under National Stock Number 5340-00-521-7181, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 14 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-521-7181
Primary Part NumberSM-B-157340
Item NameCover,access
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Distance Between Holes Along Length0.3075 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationK-F-1103,CAGEC 80063 MFR REF SINGLE TREATMENT RESPONSE
Hole Quantity Along Length2
Length0.6875 INCHES NOMINAL IN
Surface TreatmentPHOSPHATE
Body Thickness0.120 INCHES NOMINAL IN
MaterialSTEEL
Width0.375 INCHES NOMINAL IN
Cross-Sectional Shape StyleFLAT
Securing Device TypeTHREADED FASTENER
Mounting Opening Shape StyleTHREADED HOLE
Material Document and ClassificationQQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE
Peripheral Shape StyleOVAL, MULTI HOLES
Distance From First Hole Centerline to End Along Length0.1875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 6
5136-00-177-690254884 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
2530-00-408-906254884R1 INTERCHANGEABLE
Ring,side and Lock,automotive Wh
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5330-00-433-361454884 INTERCHANGEABLE
Seal
Dressta North America Ltd
3020-00-540-935954884 INTERCHANGEABLE
Gear,spur
Capitol Engine Co, Inc Dba Salmini Worldwide
5365-00-792-90285116198 INTERCHANGEABLE
Spacer,plate
Rolls-Royce Solutions America Inc
4720-01-111-5458 INTERCHANGEABLE
Hose,preformed
Cross-Reference Index
Part NumberManufacturer
54884 Kleinschmidt Inc (USA)
SM-B-157340 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5136-00-177-6902INTERCHANGEABLE
TAP,THREAD CUTTING
54884
2530-00-408-9062INTERCHANGEABLE
RING,SIDE AND LOCK,AUTOMOTIVE WH
54884R1
5330-00-433-3614INTERCHANGEABLE
SEAL
54884
3020-00-540-9359INTERCHANGEABLE
GEAR,SPUR
54884
5365-00-792-9028INTERCHANGEABLE
SPACER,PLATE
5116198
4720-01-111-5458INTERCHANGEABLE
HOSE,PREFORMED

Frequently Asked Questions

What is NSN 5340-00-521-7181?

NSN 5340-00-521-7181 is a Cover,access, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-521-7181?

NSN 5340-00-521-7181 has 2 cross-referenced part numbers: 54884 (Kleinschmidt Inc), SM-B-157340 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5340-00-521-7181?

There are 6 known substitutes for 5340-00-521-7181: 5136-00-177-6902, 2530-00-408-9062, 5330-00-433-3614 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-157340?

Key specifications for SM-B-157340: Distance Between Holes Along Length: 0.3075 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN; Surface Treatment Document and Classification: K-F-1103,CAGEC 80063 MFR REF SINGLE TREATMENT RESPONSE; Hole Quantity Along Length: 2; Length: 0.6875 INCHES NOMINAL IN. 14 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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