PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

STYLE 550Envelope,mailing

Wecsys Llc · NSN 7530-01-043-8456 · FSC 7530 · No Item Name Available
Verified by PartsTable
NSN 7530-01-043-8456 — this item is cataloged by the U.S. Government under National Stock Number 7530-01-043-8456. Primary manufacturer part number: STYLE 550.
Features
  • Envelope,mailing — FSC 7530
  • Closure Fastening Type: ADHESIVE
  • Material: PAPER SINGLE WALL
  • Inside Length: 7.875 INCHES NOMINAL IN
  • Color: BROWN
  • Opening Location: ONE SIDE
  • Inside Width: 3.562 INCHES NOMINAL IN
  • Preprinted Legend: PRINTED
Applications
  • Applications requiring Paper Single Wall construction
General Description

The Envelope,mailing, cataloged under National Stock Number 7530-01-043-8456, is classified within Federal Supply Class 7530 (No Item Name Available) of the Office Supplies and Devices group. The primary manufacturer of record is Wecsys Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN7530-01-043-8456
Primary Part NumberSTYLE 550
Item NameEnvelope,mailing
FSC / FSG7530 / 75 — No Item Name Available
ManufacturerWecsys Llc
StatusACTIVE
Closure Fastening TypeADHESIVE
MaterialPAPER SINGLE WALL
Inside Length7.875 INCHES NOMINAL IN
ColorBROWN
Opening LocationONE SIDE
Inside Width3.562 INCHES NOMINAL IN
Preprinted LegendPRINTED
Nominal Basis Weight20.0 POUNDS PER 500 SHEETS 17 X 22 SINGLE WALL LBS
Assembly MethodGLUED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
7530-00-130-32807530001303280 INTERCHANGEABLE
Envelope,mailing
General Services Administration Federal Supply Service
7530-00-144-9936 INTERCHANGEABLE
Envelope,mailing
7530-00-198-5876STYLE 17-PLAIN INTERCHANGEABLE
Envelope,mailing
Bowers Envelope Company, Inc.
7530-00-247-60692476069 ENVM INTERCHANGEABLE
Envelope,mailing
Western States Envelope Co Dba Western States Envelope & Label Div Western States Envelope Company
7530-00-763-0951STYLE 433 PRINTED INTERCHANGEABLE
Envelope,mailing
Western States Envelope Co Dba Western States Envelope & Label Div Western States Envelope Company
7530-00-935-6547QUA41767 INTERCHANGEABLE
Envelope,mailing
Adams Marketing Associates, Inc.
7530-00-935-6554 INTERCHANGEABLE
Envelope,mailing
7530-00-935-6555 INTERCHANGEABLE
Envelope,mailing
7530-00-935-7083STYLE 93 PRE-PRINTED INTERCHANGEABLE
Envelope,mailing
Wecsys Llc
7530-01-122-5150STYLE 192-D PRINTED INTERCHANGEABLE
Envelope,mailing
Bowers Envelope Company, Inc.
Cross-Reference Index
Part NumberManufacturer
UU-E-522 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-1446 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
STYLE 550 PRIMARY Wecsys Llc (USA)
STYLE 550 Bowers Envelope Company, Inc. (USA)
UU-E-522 TY1CL1FM1$2$3$4 General Services Administration Federal Supply Service (USA)
Related Parts
7530-00-130-3280INTERCHANGEABLE
ENVELOPE,MAILING
7530001303280
7530-00-144-9936INTERCHANGEABLE
ENVELOPE,MAILING
7530-00-198-5876INTERCHANGEABLE
ENVELOPE,MAILING
STYLE 17-PLAIN
7530-00-247-6069INTERCHANGEABLE
ENVELOPE,MAILING
2476069 ENVM
7530-00-763-0951INTERCHANGEABLE
ENVELOPE,MAILING
STYLE 433 PRINTED
7530-00-935-6547INTERCHANGEABLE
ENVELOPE,MAILING
QUA41767
7530-00-935-6554INTERCHANGEABLE
ENVELOPE,MAILING
7530-00-935-6555INTERCHANGEABLE
ENVELOPE,MAILING
7530-00-935-7083INTERCHANGEABLE
ENVELOPE,MAILING
STYLE 93 PRE-PRINTED
7530-01-122-5150INTERCHANGEABLE
ENVELOPE,MAILING
STYLE 192-D PRINTED
7530-01-124-5318INTERCHANGEABLE
ENVELOPE,MAILING
7530-01-152-5119INTERCHANGEABLE
ENVELOPE,MAILING
STYLE 5119

Frequently Asked Questions

What is NSN 7530-01-043-8456?

NSN 7530-01-043-8456 is a Envelope,mailing, manufactured by Wecsys Llc, classified under FSC 7530 (No Item Name Available). Status: active.

What are the part numbers for NSN 7530-01-043-8456?

NSN 7530-01-043-8456 has 5 cross-referenced part numbers: UU-E-522 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-1446 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), STYLE 550 (Wecsys Llc), STYLE 550 (Bowers Envelope Company, Inc.), UU-E-522 TY1CL1FM1$2$3$4 (General Services Administration Federal Supply Service).

What NSN replaces 7530-01-043-8456?

There are 12 known substitutes for 7530-01-043-8456: 7530-00-130-3280, 7530-00-144-9936, 7530-00-198-5876 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of STYLE 550?

Key specifications for STYLE 550: Closure Fastening Type: ADHESIVE; Material: PAPER SINGLE WALL; Inside Length: 7.875 INCHES NOMINAL IN; Color: BROWN. 9 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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