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913689 — BRACKET,AIR HORN

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

913689: BRACKET,AIR HORN.

The BRACKET,AIR HORN is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-00-013-7400, 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
913689
NSN: 4730-00-013-7400
NIINs: 000137400, 007061110
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL,LOW CARBON,QQ-S-698; 3 HOLES 13/32 IN. DIA; 2 HOLES 9/32 IN. DIA; O/A DIM. 1-3/4 IN. W BY 1-3/4 IN. H BY 8-3/8 IN. LG IN
NSN4730-00-013-7400
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 913689 · 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
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.00
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.438 INCHES NOMINAL IN
•
STYLE DESIGNATOR: INVERTED NUT, TUBE, FLARE
•
THREAD DIRECTION: RIGHT-HAND
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
THREAD SIZE: 11/16 IN.-18 IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.00
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.438 INCHES NOMINAL IN
STYLE DESIGNATORINVERTED NUT, TUBE, FLARE
OVERALL LENGTH0.688 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE11/16 IN.-18 IN
SCREW THREAD SERIES DESIGNATORNS
SURFACE TREATMENTCADMIUM OR ZINC
SUBSTITUTES & CROSS-REFERENCES 1
137400Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 913689?
913689 is a BRACKET,AIR HORN.
What parts can replace 913689?
There is 1 known substitute for 913689: 137400. Substitute compatibility should be verified for your specific system.
What is the NSN for 913689?
913689 is cataloged in the U.S. Government catalog under NSN 4730-00-013-7400. 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.