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Technical Data Sheet
121G-3 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

BARRIER MATERIAL,GREASEPROOFED-W. Key specifications include width: 3.000 FEET NOMINAL FT, length: 300.000 FEET NOMINAL FT, physical_form: ROLL, moldable_feature: NOT INCLUDED, performance_type: HEAVY DUTY, surface_condition: CREPED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 8135-00-753-4661, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
121G-3
NSN: 8135-00-753-4661
FSC: 8135
CAGE: 1S6A9 — AMERICAN PACKAGING I, INC. (USA)
SPECIFICATIONS
width3.000 FEET NOMINAL FT
length300.000 FEET NOMINAL FT
physical_formROLL
moldable_featureNOT INCLUDED
performance_typeHEAVY DUTY
surface_conditionCREPED
identification_code_colorRED
nondefinitive_spec/std_data1 TYPE AND A GRADE AND 2 CLASS
self-adhering_material_locationNONGREASEPROOF SIDE
NSN8135-00-753-4661
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BARRIER MATERIAL,GREASEPROOFED-W TITLE COMPONENT PN 121G-3 MFR BARRIER MATERIAL,GREAS
KEY FEATURES
PERFORMANCE TYPE: HEAVY DUTY
IDENTIFICATION CODE COLOR: RED
MOLDABLE FEATURE: NOT INCLUDED
PHYSICAL FORM: ROLL
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A GRADE AND 2 CLASS
SURFACE CONDITION: CREPED
WIDTH: 3.000 FEET NOMINAL FT
SELF-ADHERING MATERIAL LOCATION: NONGREASEPROOF SIDE
TECHNICAL CHARACTERISTICS (FLIS)
PERFORMANCE TYPEHEAVY DUTY
IDENTIFICATION CODE COLORRED
MOLDABLE FEATURENOT INCLUDED
PHYSICAL FORMROLL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A GRADE AND 2 CLASS
SURFACE CONDITIONCREPED
WIDTH3.000 FEET NOMINAL FT
SELF-ADHERING MATERIAL LOCATIONNONGREASEPROOF SIDE
LENGTH300.000 FEET NOMINAL FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
MIL-B-121Interchangeable
interchangeable cross-reference
interchangeable
8135PL0907950Interchangeable
interchangeable cross-reference
interchangeable
8135-00-132-9589Interchangeable
interchangeable cross-reference
interchangeable
8135-00-222-4027Interchangeable
interchangeable cross-reference
interchangeable
MS20998Interchangeable
interchangeable cross-reference
interchangeable
PK-18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121G-3?
121G-3 is a BARRIER MATERIAL,GREASEPROOFED-W.
What parts can replace 121G-3?
There are 22 known substitutes for 121G-3: MIL-B-121, 8135PL0907950, 8135-00-132-9589 and 19 more. Substitute compatibility should be verified for your specific system.
Is 121G-3 still available?
121G-3 is currently cancelled.
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