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Technical Data Sheet
27954 ✓ 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 GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1040, end_similarity: NOT IDENTICAL, overall_length: 32.0000 INCHES NOMINAL IN, first_end_style: EXTERNAL THREADED, second_end_style: EXTERNALLY THREADED AND FLAT KEYWAY, first_end_diameter: 0.9990 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-1378, 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
27954
NSN: 5330-00-154-1378
FSC: 5330
CAGE: 53762 — SEAGRAVE CORP THE (USA)
SPECIFICATIONS
materialSTEEL COMP 1040
end_similarityNOT IDENTICAL
overall_length32.0000 INCHES NOMINAL IN
first_end_styleEXTERNAL THREADED
second_end_styleEXTERNALLY THREADED AND FLAT KEYWAY
special_featuresTHREADS OFF CENTER 14.00 IN. LONG;1 1/2-4 SINGLE RIGHT HAND ACME THD..250 PITCH,4 THDS PER INCH;4.00 IN. LONG,1 1/2-6 UNC-2A;.190 DIA HOLE THRU. A
first_end_diameter0.9990 INCHES MAXIMUM IN
second_end_diameter1.1240 INCHES MAXIMUM IN
external_keyway_length1.500 INCHES NOMINAL SECOND END IN
second_end_keyway_depth0.130 INCHES NOMINAL IN
second_end_keyway_width0.2500 INCHES MAXIMUM IN
first_end_external_thread_length1.2500 INCHES NOMINAL IN
NSN5330-00-154-1378
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 27954 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
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
CASE STYLE: SQUARE
ACCOMMODATED SHAFT DIAMETER: 2.625 INCHES NOMINAL IN
MATERIAL: STEEL CASE
HOUSING BORE DIAMETER: 3.350 INCHES NOMINAL IN
SEAL WIDTH: 0.375 INCHES NOMINAL IN
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER2.625 INCHES NOMINAL IN
MATERIALSTEEL CASE
HOUSING BORE DIAMETER3.350 INCHES NOMINAL IN
SEAL WIDTH0.375 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
MAXIMUM PRESSURE RATING7.0 POUNDS PER SQUARE INCH (PSI) LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
1B3948Interchangeable
interchangeable cross-reference
interchangeable
1930Interchangeable
interchangeable cross-reference
interchangeable
120733Interchangeable
interchangeable cross-reference
interchangeable
5099Interchangeable
interchangeable cross-reference
interchangeable
1942461Interchangeable
interchangeable cross-reference
interchangeable
9000890Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 27954?
27954 is a GEAR,HELICAL.
What parts can replace 27954?
There are 17 known substitutes for 27954: 1B3948, 1930, 120733 and 14 more. Substitute compatibility should be verified for your specific system.
Is 27954 still available?
27954 is currently cancelled.
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