D171-300-306 — PACKING NUT

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

D171-300-306: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018, thread_size: 2-1/4-20, thread_class: 2A A, thread_length: 0.625 INCHES NOMINAL IN, overall_length: 1.505 INCHES NOMINAL IN, style_designator: HEXAGON, EXTERNAL THREAD, INVERTED FLARE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-040-0104, 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

D171-300-306

NSN: 4730-01-040-0104
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11440 — GE STEAM POWER INC DBA GE STEAM POWER, INC DIV GENERAL ELECTRIC (USA)

SPECIFICATIONS

material	STEEL COMP 1018
thread_size	2-1/4-20
thread_class	2A A
thread_length	0.625 INCHES NOMINAL IN
overall_length	1.505 INCHES NOMINAL IN
style_designator	HEXAGON, EXTERNAL THREAD, INVERTED FLARE
thread_direction	RIGHT-HAND
seat_angle_in_deg	45.0
width_across_flats	1.683 INCHES NOMINAL IN
screw_thread_location	EXTERNAL
casehardening_indicator	NOT CASEHARDENED
smallest_inside_diameter	1.312 INCHES NOMINAL IN
NSN	4730-01-040-0104

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 1.683 INCHES NOMINAL IN

•

SEAT ANGLE IN DEG: 45.0

•

THREAD LENGTH: 0.625 INCHES NOMINAL IN

•

STYLE DESIGNATOR: HEXAGON, EXTERNAL THREAD, INVERTED FLARE

•

THREAD DIRECTION: RIGHT-HAND

•

CASEHARDENING INDICATOR: NOT CASEHARDENED

•

THREAD SIZE: 2-1/4-20

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	1.683 INCHES NOMINAL IN
SEAT ANGLE IN DEG	45.0
THREAD LENGTH	0.625 INCHES NOMINAL IN
STYLE DESIGNATOR	HEXAGON, EXTERNAL THREAD, INVERTED FLARE
OVERALL LENGTH	1.505 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND
CASEHARDENING INDICATOR	NOT CASEHARDENED
THREAD SIZE	2-1/4-20
SCREW THREAD SERIES DESIGNATOR	UN
THREAD CLASS	2A 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 2

D-171-300-9 PIEReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

D171-300-7PC306Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 D171-300-306?

D171-300-306 is a PACKING NUT.

What parts can replace D171-300-306?

There are 2 known substitutes for D171-300-306: D-171-300-9 PIE, D171-300-7PC306. Substitute compatibility should be verified for your specific system.

What is the NSN for D171-300-306?

D171-300-306 is cataloged in the U.S. Government catalog under NSN 4730-01-040-0104. This indicates validated use in U.S. government and defense supply chains.

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