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Technical Data Sheet
120872 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

TRANSITION ASSEMBLY,FRONT PANEL. Key specifications include cushion: NOT INCLUDED, material: STEEL LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.625 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN, overall_length: 1.250 INCHES MINIMUM AND 1.437 INCHES MAXIMUM IN, special_features: PART OF BOOM TELESCOPE CYLINDER AND ROD ASSEMBLY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-282-7793, 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
MRO MRO_GENERAL 120872
NSN: 5340-00-282-7793
FSC: 5340
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.625 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
overall_length1.250 INCHES MINIMUM AND 1.437 INCHES MAXIMUM IN
special_featuresPART OF BOOM TELESCOPE CYLINDER AND ROD ASSEMBLY
style_designatorCURVED ARCH
surface_treatmentCADMIUM OR ZINC AND CHROMATE
material_thickness0.156 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
mounting_hole_size0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
end_item_identification3810-01-549-0465
inside_diameter/arch_length0.540 INCHES NOMINAL IN
NSN5340-00-282-7793
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 120872 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MOUNTING HOLE SIZE: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
INSIDE DIAMETER/ARCH LENGTH: 0.540 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE: 0.578 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
SURFACE TREATMENT: CADMIUM OR ZINC AND CHROMATE
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATOR: CURVED ARCH
MATERIAL THICKNESS: 0.156 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
CUSHION: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE SIZE0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
INSIDE DIAMETER/ARCH LENGTH0.540 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE0.578 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR ZINC AND CHROMATE
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATORCURVED ARCH
MATERIAL THICKNESS0.156 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
CUSHIONNOT INCLUDED
MOUNTING PADNOT INCLUDED
OVERALL LENGTH1.250 INCHES MINIMUM AND 1.437 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
NASM760Upgraded Successor
successor cross-reference
successor
NASM21315Upgraded Successor
successor cross-reference
successor
MS21315-5Upgraded Successor
successor cross-reference
successor
12087-2Interchangeable
interchangeable cross-reference
interchangeable
B3007191Interchangeable
interchangeable cross-reference
interchangeable
C120872Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120872?
120872 is a TRANSITION ASSEMBLY,FRONT PANEL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 120872?
There are 7 known substitutes for 120872: NASM760, NASM21315, MS21315-5 and 4 more. Substitute compatibility should be verified for your specific system.
Is 120872 still available?
120872 is currently cancelled.
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