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24978 — TRANSFORMER,POWER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

24978: TRANSFORMER,POWER.

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include material: STEEL INDIVIDUAL UNIT WEIGHT, unit_type: TRANSMISSION LINE, head_style: FILLISTER, design_type: BIDIRECTIONAL, head_height: 0.111 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN, temp_rating: -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-291-7353, 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
24978
NSN: 5331-00-291-7353
NIINs: 002917353, 009915865, 011360949, 012949066, 014684222
FSC: 5331 — O-ring
CAGE: 16004 — DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL INDIVIDUAL UNIT WEIGHT
unit_typeTRANSMISSION LINE
head_styleFILLISTER
design_typeBIDIRECTIONAL
head_height0.111 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
temp_rating-25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
thread_class2A A
head_diameter0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
overall_width8.875 INCHES NOMINAL IN
thread_length0.188 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height9.688 INCHES NOMINAL IN
NSN5331-00-291-7353
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 24978 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: -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 2.111 INCHES MINIMUM AND 2.163 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.849 INCHES MINIMUM AND 1.869 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
TEMP RATING-25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.111 INCHES MINIMUM AND 2.163 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.849 INCHES MINIMUM AND 1.869 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 9
36009Reference document
Premium Services Plan f/ PX12R-350R, 2TB Kit, 3Y, 4h, 24x7
Reference document — Secondary reference
AS3570-225Reference document
Same NSN cross-reference
Reference document — Secondary reference
7F8267Reference document
Same NSN cross-reference
Reference document — Secondary reference
RC30-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
5330002917353Reference document
Same NSN cross-reference
Reference document — Secondary reference
154079Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedAcquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 24978?
24978 is a TRANSFORMER,POWER.
What parts can replace 24978?
There are 9 known substitutes for 24978: 36009, AS3570-225, 7F8267 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 24978?
24978 is cataloged in the U.S. Government catalog under NSN 5331-00-291-7353. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.