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121905 — CONTROL ASSEMBLY,INERTIA REEL

✓ Government record, cited
Hama · ORING SEAL
PRODUCT OVERVIEW

121905: CONTROL ASSEMBLY,INERTIA REEL.

- For connecting up to three electrical devices - Sockets angled at 45° - 2-pin switch with green illumination - With child protection - GS approved. Key specifications include physical_form: LIQUID, self-polishing_feature: INCLUDED, solid_content_percentage: 20.0. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-741-0175, 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
121905
NSN: 5330-00-741-0175
NIINs: 007410175, 012423723, 013980875
FSC: 5330 — Packing and Gasket Materials
CAGE: 08683 — BROCKWAY MOTOR TRUCKS DIV OF MACK TRUCKS INC (USA)
SPECIFICATIONS
physical_formLIQUID
self-polishing_featureINCLUDED
solid_content_percentage20.0
NSN5330-00-741-0175
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 121905 MFR: Hama ⚠ 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
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.560 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
APERTURE DIAMETER2.560 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
F1X10Reference document
Same NSN cross-reference
Reference document — Secondary reference
919446Reference document
Same NSN cross-reference
Reference document — Secondary reference
BB7933Reference document
Same NSN cross-reference
Reference document — Secondary reference
A6904-10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
396478Reference document
Same NSN cross-reference
Reference document — Secondary reference
157E13-2181Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121905?
121905 is a CONTROL ASSEMBLY,INERTIA REEL manufactured by Hama.
What parts can replace 121905?
There are 7 known substitutes for 121905: F1X10, 919446, BB7933 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121905?
121905 is cataloged in the U.S. Government catalog under NSN 5330-00-741-0175. This indicates validated use in U.S. government and defense supply chains.
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