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552434 — PACKING NUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

552434: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, thread_size: 1.312-18, thread_class: 2A A, thread_length: 0.295 INCHES NOMINAL IN, overall_length: 0.775 INCHES NOMINAL IN, style_designator: HEXAGON, EXTERNAL THREAD, INVERTED FLARE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-735-9672, 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
552434
NSN: 4730-00-735-9672
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
thread_size1.312-18
thread_class2A A
thread_length0.295 INCHES NOMINAL IN
overall_length0.775 INCHES NOMINAL IN
style_designatorHEXAGON, EXTERNAL THREAD, INVERTED FLARE
thread_directionRIGHT-HAND
seat_angle_in_deg30.0
width_across_flats0.750 INCHES NOMINAL IN
screw_thread_locationEXTERNAL
casehardening_indicatorNOT CASEHARDENED
smallest_inside_diameter0.555 INCHES NOMINAL IN
NSN4730-00-735-9672
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 552434 · 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: 0.750 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 30.0
•
THREAD LENGTH: 0.295 INCHES NOMINAL IN
•
STYLE DESIGNATOR: HEXAGON, EXTERNAL THREAD, INVERTED FLARE
•
THREAD DIRECTION: RIGHT-HAND
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
THREAD SIZE: 1.312-18
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
SEAT ANGLE IN DEG30.0
THREAD LENGTH0.295 INCHES NOMINAL IN
STYLE DESIGNATORHEXAGON, EXTERNAL THREAD, INVERTED FLARE
OVERALL LENGTH0.775 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE1.312-18
SCREW THREAD SERIES DESIGNATORUNEF
THREAD CLASS2A A
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
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
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FREQUENTLY ASKED QUESTIONS
What is 552434?
552434 is a PACKING NUT.
What is the NSN for 552434?
552434 is cataloged in the U.S. Government catalog under NSN 4730-00-735-9672. 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.