B1004 — RECEIVER-TRANSMITTER SUBASSEMBLY

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

B1004: RECEIVER-TRANSMITTER SUBASSEMBLY.

RECEIVER-TRANSMITTER SUBASSEMBLY. Key specifications include material: STEEL, bore_shape: STRAIGHT, cone_width: 1.4440 INCHES NOMINAL IN, head_style: HEXAGON, inlet_type: OPEN, filter_type: OIL BATH. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-044-5504, 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

MRO→ MRO_GENERAL→ B1004

NSN: 5305-00-044-5504
NIINs: 000445504, 001000282, 001565062, 002880404, 004869962, 009110970, 010620212, 015256687
FSC: 5305 — Screws
CAGE: 25567 — THE GORMAN-RUPP COMPANY DIV GORMAN-RUPP (USA)

SPECIFICATIONS

material	STEEL
quantity	2
bore_shape	STRAIGHT
cone_width	1.4440 INCHES NOMINAL IN
head_style	HEXAGON
inlet_type	OPEN
filter_type	OIL BATH
head_height	0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
outlet_type	SLEEVE
element_type	HOODED
oil_capacity	4.0 PINTS
thread_class	2A A
NSN	5305-00-044-5504

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.000 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 1.000 INCHES MAXIMUM IN

•

HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.625 INCHES IN

•

HEAD STYLE: HEXAGON

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
FASTENER LENGTH	1.000 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	1.000 INCHES MAXIMUM IN
HARDNESS RATING	23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.625 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 8

NASM90725Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

5768-10Reference document

Same NSN cross-reference

Reference document — Secondary reference

B1004 15991Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MS90725-158Reference document

Same NSN cross-reference

Reference document — Secondary reference

5305000445504Reference document

Same NSN cross-reference

Reference document — Informative reference only

FF-S-85Reference document

Same NSN cross-reference

Reference document — Identification reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B1004?

B1004 is a RECEIVER-TRANSMITTER SUBASSEMBLY. It is classified as a MRO (MRO_GENERAL).

What parts can replace B1004?

There are 8 known substitutes for B1004: NASM90725, 5768-10, B1004 15991 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for B1004?

B1004 is cataloged in the U.S. Government catalog under NSN 5305-00-044-5504. This indicates validated use in U.S. government and defense supply chains.

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