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S738 — TRANSFORMER,POWER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S738: TRANSFORMER,POWER.

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include material: SELENIUM, body_width: 1.255 INCHES MINIMUM AND 1.285 INCHES MAXIMUM IN, body_height: 1.225 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN, body_length: 1.415 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF, overall_width: 0.297 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-194-3721, 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
S738
NSN: 5331-00-194-3721
NIINs: 001943721, 010367661, 013222634
FSC: 5331 — O-ring
CAGE: 73277 — HOUGHTON INTERNATIONAL INC. (USA)
SPECIFICATIONS
materialSELENIUM
body_width1.255 INCHES MINIMUM AND 1.285 INCHES MAXIMUM IN
body_height1.225 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
body_length1.415 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
overall_width0.297 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_length1.562 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S) SINGLE GROUP
frequency_rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
terminal_quantity2
center_hole_diameter2.710 INCHES MINIMUM AND 2.740 INCHES MAXIMUM IN
NSN5331-00-194-3721
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S738 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 160.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 2.710 INCHES MINIMUM AND 2.740 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
CENTER HOLE DIAMETER2.710 INCHES MINIMUM AND 2.740 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 9
AN6227B38Reference document
Same NSN cross-reference
Reference document — Secondary reference
HN4PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
4279-167PC39Reference document
Same NSN cross-reference
Reference document — Secondary reference
100A10-38Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN6227-38Reference document
Same NSN cross-reference
Reference document — Identification reference
AN6227BPC43Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S738?
S738 is a TRANSFORMER,POWER.
What parts can replace S738?
There are 9 known substitutes for S738: AN6227B38, HN4PC16, 4279-167PC39 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S738?
S738 is cataloged in the U.S. Government catalog under NSN 5331-00-194-3721. This indicates validated use in U.S. government and defense supply chains.
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