CSR505-12R — SCREW,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

CSR505-12R: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.507 INCHES MINIMUM AND 0.517 INCHES MAXIMUM IN, screw_material: STEEL COMP 303, fastener_length: 0.375 INCHES NOMINAL IN, special_features: CONCENTRIC HOLE EXTENDING LENGTH OF SCREW. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-196-0438, 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

CSR505-12R

NSN: 5305-01-196-0438
FSC: 5305 — Screws
CAGE: 58998 — FASTENER INNOVATION TECHNOLOGY, INC. DBA F I T (USA)

SPECIFICATIONS

head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.507 INCHES MINIMUM AND 0.517 INCHES MAXIMUM IN
screw_material	STEEL COMP 303
fastener_length	0.375 INCHES NOMINAL IN
special_features	CONCENTRIC HOLE EXTENDING LENGTH OF SCREW
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
internal_drive_style	RECESSED TYPE I
nominal_thread_diameter	0.375 INCHES IN
screw_surface_treatment	PASSIVATE
thread_quantity_per_inch	24
NSN	5305-01-196-0438

COMPONENT DIAGRAM

KEY FEATURES

•

SCREW SURFACE TREATMENT: PASSIVATE

•

FASTENER LENGTH: 0.375 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

SCREW MATERIAL: STEEL COMP 303

•

INTERNAL DRIVE STYLE: RECESSED TYPE I

TECHNICAL CHARACTERISTICS

SCREW SURFACE TREATMENT	PASSIVATE
FASTENER LENGTH	0.375 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.375 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SCREW MATERIAL	STEEL COMP 303
SPECIAL FEATURES	CONCENTRIC HOLE EXTENDING LENGTH OF SCREW
INTERNAL DRIVE STYLE	RECESSED TYPE I
COUNTERSINK ANGLE	100.0 DEGREES NOMINAL
THREAD CLASS	3A A

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 1

D791639-12-AReference document

Same NSN cross-reference

Reference document — Secondary 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 CSR505-12R?

CSR505-12R is a SCREW,MACHINE.

What parts can replace CSR505-12R?

There is 1 known substitute for CSR505-12R: D791639-12-A. Substitute compatibility should be verified for your specific system.

What is the NSN for CSR505-12R?

CSR505-12R is cataloged in the U.S. Government catalog under NSN 5305-01-196-0438. This indicates validated use in U.S. government and defense supply chains.

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