PartsTable
Technical Data Sheet
Download PDF

28812 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
Legrand · HOSE FITTING
PRODUCT OVERVIEW

28812: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a Legrand industrial component. Key specifications include material: STEEL OVERALL, body_width: 0.906 INCHES NOMINAL IN, head_angle: 15.0 DEGREES NOMINAL, leg_length: 0.391 INCHES NOMINAL SECOND END IN, seat_angle: 37.0 DEGREES FIRST END, body_height: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-289-5441, 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
28812
NSN: 4730-00-289-5441
NIINs: 002895441, 004800293, 006482539, 006651432, 013469763, 016315079
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 45RP7 — DRESSTA NORTH AMERICA LTD (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width0.906 INCHES NOMINAL IN
head_angle15.0 DEGREES NOMINAL
leg_length0.391 INCHES NOMINAL SECOND END IN
seat_angle37.0 DEGREES FIRST END
body_height2.000 INCHES NOMINAL IN
body_length1.375 INCHES NOMINAL IN
temp_rating-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class3B FIRST END
inclosure_typeHERMETICALLY SEALED
overall_length6.169 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL TUBE FIRST END
NSN4730-00-289-5441
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 28812 · Legrand ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION STYLE: INVERTED FLARE (TUBE) FIRST END
•
CONNECTION TYPE: THREADED INTERNAL TUBE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.438 INCHES ALL ENDS IN
•
LEG LENGTH: 0.391 INCHES NOMINAL SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
CONNECTION STYLEINVERTED FLARE (TUBE) THIRD END
CONNECTION STYLEINVERTED FLARE (TUBE) SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE THIRD END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.438 INCHES ALL ENDS IN
LEG LENGTH0.391 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE0.438 INCHES THIRD END IN
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 8
138K1Reference document
Same NSN cross-reference
Reference document — Secondary reference
D28812Reference document
Same NSN cross-reference
Reference document — Secondary reference
497756Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7734Reference document
Same NSN cross-reference
Reference document — Secondary reference
F4174Reference document
Same NSN cross-reference
Reference document — Secondary reference
2017608Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 28812?
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 28812?
28812 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Legrand.
What parts can replace 28812?
There are 8 known substitutes for 28812: 138K1, D28812, 497756 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28812?
28812 is cataloged in the U.S. Government catalog under NSN 4730-00-289-5441. 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 — 28812