AB2660M — SCREW,ASSEMBLED WASHER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

AB2660M: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE PRIMARY WASHER, head_style: ROUND EXTENDED WASHER, head_height: 0.080 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.285 INCHES MAXIMUM IN, fastener_length: 0.235 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-309-6508, 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

AB2660M

NSN: 5305-01-309-6508
FSC: 5305 — Screws
CAGE: 02310 — PATTONAIR USA INC DBA INCORA DIV UNISEAL DIVISION (USA)

SPECIFICATIONS

material	PLASTIC POLYTETRAFLUOROETHYLENE PRIMARY WASHER
head_style	ROUND EXTENDED WASHER
head_height	0.080 INCHES NOMINAL IN
thread_class	3A A
head_diameter	0.285 INCHES MAXIMUM IN
fastener_length	0.235 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
washer_quantity	1
special_features	FURNISHED WITH O-RING; EMI-RFI CONDUCTIVE
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE FASTENER
internal_drive_style	CROSS RECESS TYPE 1
primary_washer_style	FLAT
NSN	5305-01-309-6508

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.080 INCHES NOMINAL IN

•

FASTENER LENGTH: 0.235 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN

•

NOMINAL THREAD DIAMETER: 0.112 INCHES IN

•

HEAD STYLE: ROUND EXTENDED WASHER

•

PRIMARY WASHER STYLE: FLAT

•

THREAD DIRECTION: RIGHT-HAND

•

SURFACE TREATMENT: PASSIVATE FASTENER

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.080 INCHES NOMINAL IN
FASTENER LENGTH	0.235 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER	0.112 INCHES IN
HEAD STYLE	ROUND EXTENDED WASHER
PRIMARY WASHER STYLE	FLAT
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	FURNISHED WITH O-RING; EMI-RFI CONDUCTIVE
SURFACE TREATMENT	PASSIVATE FASTENER
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
THREAD CLASS	3A A

SUBSTITUTES & CROSS-REFERENCES 2

156960Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

AS266-0X-4Reference 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 AB2660M?

AB2660M is a SCREW,ASSEMBLED WASHER.

What parts can replace AB2660M?

There are 2 known substitutes for AB2660M: 156960, AS266-0X-4. Substitute compatibility should be verified for your specific system.

What is the NSN for AB2660M?

AB2660M is cataloged in the U.S. Government catalog under NSN 5305-01-309-6508. This indicates validated use in U.S. government and defense supply chains.

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AB2660M — SCREW,ASSEMBLED WASHER

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