PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-B-121Barrier Material,greaseproofed-W

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 8135-00-543-6574 · FSC 8135 · No Item Name Available
Verified by PartsTable
NSN 8135-00-543-6574 — this item is cataloged by the U.S. Government under National Stock Number 8135-00-543-6574. Primary manufacturer part number: MIL-B-121.
Features
  • Barrier Material,greaseproofed-W — FSC 8135
  • Identification Code Color: RED
  • Surface Condition: SMOOTH
  • Moldable Feature: NOT INCLUDED
  • Self-Adhering Material Location: NONGREASEPROOF SIDE
  • Supply Package Type: ROLL
  • Physical Form: ROLL
  • Nondefinitive Spec/std Data: 1 TYPE AND A GRADE AND 1 CLASS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Barrier Material,greaseproofed-W, cataloged under National Stock Number 8135-00-543-6574, is classified within Federal Supply Class 8135 (No Item Name Available) of the Containers, Packaging, and Packing Supplies group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN8135-00-543-6574
Primary Part NumberMIL-B-121
Item NameBarrier Material,greaseproofed-W
FSC / FSG8135 / 81 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Identification Code ColorRED
Surface ConditionSMOOTH
Moldable FeatureNOT INCLUDED
Self-Adhering Material LocationNONGREASEPROOF SIDE
Supply Package TypeROLL
Physical FormROLL
Nondefinitive Spec/std Data1 TYPE AND A GRADE AND 1 CLASS
Performance TypeMEDIUM DUTY
Length300.000 FEET NOMINAL FT
Width4.000 FEET NOMINAL FT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
8135-00-132-9589 INTERCHANGEABLE
Barrier Material,greaseproofed,f
8135-00-171-0930 INTERCHANGEABLE
Barrier Material,greaseproofed-W
8135-00-222-4027222-4027 INTERCHANGEABLE
Barrier Material,greaseproofed-W
Royco Packaging Inc
8135-00-224-8885PK-18 INTERCHANGEABLE
Barrier Material,greaseproofed-W
Alphavets, Llc
8135-00-226-3124226-3124 INTERCHANGEABLE
Barrier Material,greaseproofed-W
Royco Packaging Inc
8135-00-233-3871PK-1 36IN.X200YDS INTERCHANGEABLE
Barrier Material,greaseproofed-W
Alphavets, Llc
8135-00-292-97199719 INTERCHANGEABLE
Barrier Material,greaseproofed-W
American Packaging I, Inc.
8135-00-292-97288135-00-292-9728 INTERCHANGEABLE
Barrier Material,greaseproofed-W
Berry Plastics Corp
8135-00-543-6573PK-18-48 INTERCHANGEABLE
Barrier Material,greaseproofed-W
Berry Global, Inc. Dba Berry Plastics Corp Div Berry Global
8135-00-753-4661753-4661 INTERCHANGEABLE
Barrier Material,greaseproofed-W
Star Poly Bag, Inc.
Cross-Reference Index
Part NumberManufacturer
MIL-B-121 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
PK1 Berry Global, Inc. Dba Berry Plastics Corp Div Berry Global (USA)
10150363 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
8135-00-132-9589INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED,F
8135-00-171-0930INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
8135-00-222-4027INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
222-4027
8135-00-224-8885INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
PK-18
8135-00-226-3124INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
226-3124
8135-00-233-3871INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
PK-1 36IN.X200YDS
8135-00-292-9719INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
9719
8135-00-292-9728INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
8135-00-292-9728
8135-00-543-6573INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
PK-18-48
8135-00-753-4661INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
753-4661
8135-00-753-4662INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W
121G-2
8135-00-810-4075INTERCHANGEABLE
BARRIER MATERIAL,GREASEPROOFED-W

Frequently Asked Questions

What is NSN 8135-00-543-6574?

NSN 8135-00-543-6574 is a Barrier Material,greaseproofed-W, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 8135 (No Item Name Available). Status: active.

What are the part numbers for NSN 8135-00-543-6574?

NSN 8135-00-543-6574 has 3 cross-referenced part numbers: MIL-B-121 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), PK1 (Berry Global, Inc. Dba Berry Plastics Corp Div Berry Global), 10150363 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 8135-00-543-6574?

There are 12 known substitutes for 8135-00-543-6574: 8135-00-132-9589, 8135-00-171-0930, 8135-00-222-4027 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-B-121?

Key specifications for MIL-B-121: Identification Code Color: RED; Surface Condition: SMOOTH; Moldable Feature: NOT INCLUDED; Self-Adhering Material Location: NONGREASEPROOF SIDE. 10 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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