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1231-81 — FILTER ELEMENT,AIR CONDITIONING

✓ Government record, cited
Hama · MRO · MRO_GENERAL
PRODUCT OVERVIEW

1231-81: FILTER ELEMENT,AIR CONDITIONING.

- Radio-controlled wall clock that indicates the time on an analogue display. - DCF radio clock which automatically adjusts to the world´s most accurate clock. - Sweep second hand that keeps the clock quiet.

- Large, white face with Arabic numerals. - Hour, minute and second hand. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-298-0367, 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→ 1231-81
NSN: 5330-00-298-0367
NIINs: 002980367, 006925499, 008821324, 013176787, 014923627, 016002299
FSC: 5330 — Packing and Gasket Materials
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
octave_quantity5
NSN5330-00-298-0367
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1231-81 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
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CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
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MATERIAL DOCUMENT AND CLASSIFICATION: 417,615 MIL STD SINGLE MATERIAL RESPONSE OVERALL
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CROSS-SECTIONAL SHAPE STYLE: O-RING
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COLOR: BLACK
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CENTER HOLE DIAMETER: 1.830 INCHES NOMINAL IN
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MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION417,615 MIL STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
COLORBLACK
CENTER HOLE DIAMETER1.830 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
2296403Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1231-81?
1231-81 is a FILTER ELEMENT,AIR CONDITIONING manufactured by Hama. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1231-81?
There is 1 known substitute for 1231-81: 2296403. Substitute compatibility should be verified for your specific system.
What is the NSN for 1231-81?
1231-81 is cataloged in the U.S. Government catalog under NSN 5330-00-298-0367. This indicates validated use in U.S. government and defense supply chains.
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