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BM11399-105 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

BM11399-105: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: CLOSE, surface_treatment: ZINC OVERALL, nominal_thread_size: 0.125 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-277-9644, 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
BM11399-105
NSN: 4730-00-277-9644
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 19422 — DEMARKUS CORP REFRIGERATION ENGINEERING CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorCLOSE
surface_treatmentZINC OVERALL
nominal_thread_size0.125 INCHES ALL ENDS IN
nominal_overall_length1.000 INCHES IN
thread_series_designatorNPT ALL ENDS
specification/standard_data81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-00-277-9644
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: BM11399-105 · OEM ⚠ 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: PLAIN (PIPE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.000 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: CLOSE
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH1.000 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
STYLE DESIGNATORCLOSE
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 8
ASTM-A733Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
X12683Reference document
Same NSN cross-reference
Reference document — Secondary reference
A733XS-3CFGReference document
Same NSN cross-reference
Reference document — Secondary reference
453851Reference document
Same NSN cross-reference
Reference document — Secondary reference
45N2074-125Reference document
Same NSN cross-reference
Reference document — Secondary reference
A733S-3CFGReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BM11399-105?
BM11399-105 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace BM11399-105?
There are 8 known substitutes for BM11399-105: ASTM-A733, X12683, A733XS-3CFG and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BM11399-105?
BM11399-105 is cataloged in the U.S. Government catalog under NSN 4730-00-277-9644. 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.