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Technical Data Sheet
PartsTable / COMPONENT / M1154A
M1154A ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, housing_bore_diameter: 1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN, sealing_element_style: VERTICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-876-2782, 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
M1154A
NSN: 5330-00-876-2782
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
housing_bore_diameter1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN
sealing_element_styleVERTICAL
end_item_identificationW/S: EMORY S. LAND CLASS AS; FORRESTAL CLASS CV; FIRE PUMPS; SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE); NIMITZ CLASS CVN; BLUE RIDGE CLASS LHA; FMS-NEWPORT CLASS LST; WASP CLASS LHD
accommodated_shaft_diameter1.250 INCHES NOMINAL IN
NSN5330-00-876-2782
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M1154A 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN
•
MATERIAL: STEEL CASE
•
CASE STYLE: SQUARE
•
SEALING ELEMENT STYLE: VERTICAL
•
ACCOMMODATED SHAFT DIAMETER: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
SEAL WIDTH0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
HOUSING BORE DIAMETER1.999 INCHES MINIMUM AND 2.001 INCHES MAXIMUM IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
CASE STYLESQUARE
SEALING ELEMENT STYLEVERTICAL
ACCOMMODATED SHAFT DIAMETER1.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONW/S: EMORY S. LAND CLASS AS; FORRESTAL CLASS CV; FIRE PUMPS; SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE); NIMITZ CLASS CVN; BLUE RIDGE CLASS LHA; FMS-NEWPORT CLASS LST; WASP CLASS LHD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
12485Interchangeable
interchangeable cross-reference
interchangeable
1376Interchangeable
interchangeable cross-reference
interchangeable
A-A-2577 TY1STACL3Interchangeable
interchangeable cross-reference
interchangeable
UU-C-806 TY1STACL3Interchangeable
interchangeable cross-reference
interchangeable
791-431Interchangeable
interchangeable cross-reference
interchangeable
02-09-2133Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M1154A?
M1154A is a SEAL,PLAIN ENCASED.
What parts can replace M1154A?
There are 19 known substitutes for M1154A: 12485, 1376, A-A-2577 TY1STACL3 and 16 more. Substitute compatibility should be verified for your specific system.
Is M1154A still available?
M1154A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026