PartsTable
Technical Data Sheet
Download PDF

693748 — TRANSFORMER,POWER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

693748: TRANSFORMER,POWER.

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, ring_style: EXPANDING CONCENTRIC, joint_style: INTERLOCKING JOINT, overall_width: 0.1540 INCHES MINIMUM AND 0.1550 INCHES MAXIMUM IN, inclosure_type: OPEN, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-421-2189, 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
693748
NSN: 5330-00-421-2189
NIINs: 004212189, 008694532
FSC: 5330 — Packing and Gasket Materials
CAGE: 09612 — NORTON CANADA INC (CAN)
SPECIFICATIONS
materialSTEEL OVERALL
ring_styleEXPANDING CONCENTRIC
joint_styleINTERLOCKING JOINT
overall_width0.1540 INCHES MINIMUM AND 0.1550 INCHES MAXIMUM IN
inclosure_typeOPEN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
outside_diameter3.550 INCHES NOMINAL IN
surface_treatmentSILVER OVERALL
fsc_application_dataENGINE,AIRCRAFT
radial_wall_thickness0.0700 INCHES MINIMUM AND 0.0750 INCHES MAXIMUM IN
reliability_indicatorNOT ESTABLISHED
NSN5330-00-421-2189
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 693748 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
•
FSC APPLICATION DATA: ENGINE,AIRCRAFT
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
OUTSIDE DIAMETER: 3.550 INCHES NOMINAL IN
•
JOINT STYLE: INTERLOCKING JOINT
•
RADIAL WALL THICKNESS: 0.0700 INCHES MINIMUM AND 0.0750 INCHES MAXIMUM IN
•
RING STYLE: EXPANDING CONCENTRIC
•
SURFACE TREATMENT: SILVER OVERALL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAENGINE,AIRCRAFT
OVERALL WIDTH0.1540 INCHES MINIMUM AND 0.1550 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
OUTSIDE DIAMETER3.550 INCHES NOMINAL IN
JOINT STYLEINTERLOCKING JOINT
RADIAL WALL THICKNESS0.0700 INCHES MINIMUM AND 0.0750 INCHES MAXIMUM IN
RING STYLEEXPANDING CONCENTRIC
SURFACE TREATMENTSILVER OVERALL
MATERIALSTEEL OVERALL
METALLIC HARDNESS RATING33.0 NOMINAL ROCKWELL C
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 693748?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 693748?
693748 is a TRANSFORMER,POWER.
What is the NSN for 693748?
693748 is cataloged in the U.S. Government catalog under NSN 5330-00-421-2189. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 693748

✓ 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.