A1644 — A1644

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

A1644: A1644.

The A1644 is a the manufacturer industrial component. Key specifications include material: WOOL COMP 9R2 OVERALL, thickness: 0.112 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN, hole_diameter: 0.812 INCHES NOMINAL IN, overall_diameter: 1.312 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5999-00-011-4916, 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→ A1644

NSN: 5999-00-011-4916
NIINs: 000114916, 001516835, 001715750, 012842899
FSC: 5999 — Miscellaneous Electrical and Electronic Components
CAGE: 09435 — HOLT INSTRUMENT LABORATORIES, LLC DBA HOLT INSTRUMENT DIVISION DIV HOLT INSTRUMENT LABORATORIES (USA)

SPECIFICATIONS

material	WOOL COMP 9R2 OVERALL
thickness	0.112 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
hole_diameter	0.812 INCHES NOMINAL IN
overall_diameter	1.312 INCHES NOMINAL IN
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5999-00-011-4916

COMPONENT DIAGRAM

KEY FEATURES

•

SIGNAL DELAY METHOD: INDUCTANCE

•

SECTION DELAY TIME: 250.000 NANOSECONDS NOMINAL SINGLE SECTION NS

•

MOUNTING FACILITY QUANTITY: 3

•

OUTPUT IMPEDANCE RATING: 500.000 OHMS

•

BODY STYLE: RECTANGULAR

•

BODY WIDTH: 0.475 INCHES NOMINAL IN

•

INDIVIDUAL SECTION QUANTITY: 1

•

MATERIAL DOCUMENT AND CLASSIFICATION: L-P-389, TYPE 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

SIGNAL DELAY METHOD	INDUCTANCE
SECTION DELAY TIME	250.000 NANOSECONDS NOMINAL SINGLE SECTION NS
MOUNTING FACILITY QUANTITY	3
OUTPUT IMPEDANCE RATING	500.000 OHMS
BODY STYLE	RECTANGULAR
BODY WIDTH	0.475 INCHES NOMINAL IN
INDIVIDUAL SECTION QUANTITY	1
MATERIAL DOCUMENT AND CLASSIFICATION	L-P-389, TYPE 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DELAY TIME VARIATION METHOD	VARIABLE
BODY LENGTH	5.300 INCHES NOMINAL IN

SUBSTITUTES & CROSS-REFERENCES 2

G3390Reference document

Same NSN cross-reference

Reference document — Secondary reference

503894Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementDemilitarization required — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is A1644?

A1644 is a A1644. It is classified as a MRO (MRO_GENERAL).

What parts can replace A1644?

There are 2 known substitutes for A1644: G3390, 503894. Substitute compatibility should be verified for your specific system.

What is the NSN for A1644?

A1644 is cataloged in the U.S. Government catalog under NSN 5999-00-011-4916. This indicates validated use in U.S. government and defense supply chains.

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