MIL-PRF-121 — BARRIER MATERIAL,GREASEPROOFED-W

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

MIL-PRF-121: BARRIER MATERIAL,GREASEPROOFED-W.

BARRIER MATERIAL,GREASEPROOFED-W. Key specifications include width: 3.000 FEET NOMINAL FT, length: 300.000 FEET NOMINAL FT, physical_form: ROLL, moldable_feature: INCLUDED, performance_type: MEDIUM DUTY, special_features: ENVELOPE MATERIAL: GLASS; MFG. CLASS: TR TUBE.

This part is cataloged in the U.S. Government catalog under NSN 5960-00-188-3535, 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

MIL-PRF-121

NSN: 5960-00-188-3535
NIINs: 001883535, 002929719, 002929728
FSC: 5960 — Electron Tubes and Associated Hardware
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

width	3.000 FEET NOMINAL FT
length	300.000 FEET NOMINAL FT
physical_form	ROLL
moldable_feature	INCLUDED
performance_type	MEDIUM DUTY
special_features	ENVELOPE MATERIAL: GLASS; MFG. CLASS: TR TUBE
surface_condition	SMOOTH
supply_package_type	ROLL
nondefinitive_spec/std_data	1 TYPE
self-adhering_material_location	BOTH SIDES
NSN	5960-00-188-3535

COMPONENT DIAGRAM

KEY FEATURES

•

NONDEFINITIVE SPEC/STD DATA: 1B23 TYPE

TECHNICAL CHARACTERISTICS

NONDEFINITIVE SPEC/STD DATA	1B23 TYPE
SPECIAL FEATURES	ENVELOPE MATERIAL: GLASS; MFG. CLASS: TR TUBE

SUBSTITUTES & CROSS-REFERENCES 2

1B23Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MILE1-21Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

HAZMAT per U.S. Government catalogAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MIL-PRF-121?

MIL-PRF-121 is a BARRIER MATERIAL,GREASEPROOFED-W.

What parts can replace MIL-PRF-121?

There are 2 known substitutes for MIL-PRF-121: 1B23, MILE1-21. Substitute compatibility should be verified for your specific system.

What is the NSN for MIL-PRF-121?

MIL-PRF-121 is cataloged in the U.S. Government catalog under NSN 5960-00-188-3535. This indicates validated use in U.S. government and defense supply chains.

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