ER01258 — BOLT,FLUID PASSAGE

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

ER01258: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: ALUMINUM, body_style: BODY WRENCHING, overall_length: 3.968 INCHES NOMINAL IN, surface_treatment: ANODIZE, width_across_flats: 0.996 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN, concentric_hole_depth: 3.218 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-9754, 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

ER01258

NSN: 4730-00-203-9754
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79470 — DANA CORP WEATHERHEAD DIV (USA)

SPECIFICATIONS

material	ALUMINUM
body_style	BODY WRENCHING
overall_length	3.968 INCHES NOMINAL IN
surface_treatment	ANODIZE
width_across_flats	0.996 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
concentric_hole_depth	3.218 INCHES NOMINAL IN
second_end_seat_angle	12.0 DEGREES NOMINAL
first_end_thread_class	3A A
first_end_thread_length	0.388 INCHES NOMINAL IN
second_end_thread_class	3A A
wrenching_feature_style	HEXAGON
concentric_hole_diameter	0.422 INCHES NOMINAL IN
NSN	4730-00-203-9754

COMPONENT DIAGRAM

KEY FEATURES

•

FIRST END THREAD SERIES DESIGNATOR: UNF

•

WIDTH ACROSS FLATS: 0.996 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN

•

FIRST END THREAD DIRECTION: RIGHT-HAND

•

SECOND END NOMINAL THREAD SIZE: 0.750 INCHES IN

•

LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.377 INCHES NOMINAL IN

•

SECOND END THREAD CLASS: 3A A

•

THIRD DIAMETER FROM WRENCHING FEATURE: 0.811 INCHES NOMINAL IN

•

BODY STYLE: BODY WRENCHING

TECHNICAL CHARACTERISTICS

FIRST END THREAD SERIES DESIGNATOR	UNF
WIDTH ACROSS FLATS	0.996 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN
FIRST END THREAD DIRECTION	RIGHT-HAND
SECOND END NOMINAL THREAD SIZE	0.750 INCHES IN
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER	0.377 INCHES NOMINAL IN
SECOND END THREAD CLASS	3A A
THIRD DIAMETER FROM WRENCHING FEATURE	0.811 INCHES NOMINAL IN
BODY STYLE	BODY WRENCHING
FIRST END THREAD CLASS	3A A
FIRST END STYLE DESIGNATOR	PLAIN

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

MS21940-8HReference document

Same NSN cross-reference

Reference document — Secondary reference

SAE-AS18280Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 ER01258?

ER01258 is a BOLT,FLUID PASSAGE.

What parts can replace ER01258?

There are 2 known substitutes for ER01258: MS21940-8H, SAE-AS18280. Substitute compatibility should be verified for your specific system.

What is the NSN for ER01258?

ER01258 is cataloged in the U.S. Government catalog under NSN 4730-00-203-9754. This indicates validated use in U.S. government and defense supply chains.

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ER01258 — BOLT,FLUID PASSAGE

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