PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-728 SETCover Set,movable Topper

Southern Mills, Inc · NSN 3510-00-571-8459 · FSC 3510 · No Item Name Available
Verified by PartsTable
NSN 3510-00-571-8459 — this item is cataloged by the U.S. Government under National Stock Number 3510-00-571-8459. Primary manufacturer part number: SM-728 SET.
Features
  • Cover Set,movable Topper — FSC 3510
  • General Characteristics Item Description: COTTON DUCK; SET CONSISTS OF 1 LEFT AND 1 RIGHT COVER
  • 3 verified cross-references
  • Primary manufacturer: Southern Mills, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cover Set,movable Topper, cataloged under National Stock Number 3510-00-571-8459, is classified within Federal Supply Class 3510 (No Item Name Available) of the Service and Trade Equipment group. The primary manufacturer of record is Southern Mills, Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3510-00-571-8459
Primary Part NumberSM-728 SET
Item NameCover Set,movable Topper
FSC / FSG3510 / 35 — No Item Name Available
ManufacturerSouthern Mills, Inc
StatusACTIVE
General Characteristics Item DescriptionCOTTON DUCK; SET CONSISTS OF 1 LEFT AND 1 RIGHT COVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2530-00-040-14941259B28 INTERCHANGEABLE
Pin
Meritor Heavy Vehicle Systems, Llc
1650-00-135-75138312-1 INTERCHANGEABLE
Cover,valve
Goodrich Aerospace Canada Ltd
5330-00-249-40938312-1 INTERCHANGEABLE
Gasket
Cummins Inc.
5895-01-182-21808312.1 INTERCHANGEABLE
Transmitter,angle U
Muirhead Aerospace Ltd
Cross-Reference Index
Part NumberManufacturer
SM-728 SET PRIMARY Southern Mills, Inc (USA)
8-3121 Colmac Industries, Inc (USA)
3121MTCC Colmac Industries, Inc (USA)
Related Parts
2530-00-040-1494INTERCHANGEABLE
PIN
1259B28
1650-00-135-7513INTERCHANGEABLE
COVER,VALVE
8312-1
5330-00-249-4093INTERCHANGEABLE
GASKET
8312-1
5895-01-182-2180INTERCHANGEABLE
TRANSMITTER,ANGLE U
8312.1

Frequently Asked Questions

What is NSN 3510-00-571-8459?

NSN 3510-00-571-8459 is a Cover Set,movable Topper, manufactured by Southern Mills, Inc, classified under FSC 3510 (No Item Name Available). Status: active.

What are the part numbers for NSN 3510-00-571-8459?

NSN 3510-00-571-8459 has 3 cross-referenced part numbers: SM-728 SET (Southern Mills, Inc), 8-3121 (Colmac Industries, Inc), 3121MTCC (Colmac Industries, Inc).

What NSN replaces 3510-00-571-8459?

There are 4 known substitutes for 3510-00-571-8459: 2530-00-040-1494, 1650-00-135-7513, 5330-00-249-4093 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-728 SET?

Key specifications for SM-728 SET: End Item Identification: COLMAC MODEL 800 PANT-A-MATIC; General Characteristics Item Description: COTTON DUCK; SET CONSISTS OF 1 LEFT AND 1 RIGHT COVER. 2 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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