C7997-3-8 — SCREW ASSEMBLY,PANEL

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

C7997-3-8: SCREW ASSEMBLY,PANEL.

The SCREW ASSEMBLY,PANEL is a the manufacturer industrial component. Key specifications include head_style: HEXAGON EXTENDED WASHER, head_height: 0.180 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN, fastener_length: 1.055 INCHES MINIMUM AND 1.085 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-154-4325, 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

C7997-3-8

NSN: 5305-01-154-4325
FSC: 5305 — Screws
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)

SPECIFICATIONS

head_style	HEXAGON EXTENDED WASHER
head_height	0.180 INCHES NOMINAL IN
thread_class	3A A
thread_length	0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
fastener_length	1.055 INCHES MINIMUM AND 1.085 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE SPRING
width_between_flats	0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
nominal_thread_diameter	0.190 INCHES IN
extended_washer_diameter	0.350 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
thread_quantity_per_inch	32
thread_series_designator	UNF
NSN	5305-01-154-4325

COMPONENT DIAGRAM

KEY FEATURES

•

EXTENDED WASHER THICKNESS: 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN

•

HEAD HEIGHT: 0.180 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.055 INCHES MINIMUM AND 1.085 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER

•

EXTENDED WASHER DIAMETER: 0.350 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

EXTENDED WASHER THICKNESS	0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
HEAD HEIGHT	0.180 INCHES NOMINAL IN
FASTENER LENGTH	1.055 INCHES MINIMUM AND 1.085 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF
EXTENDED WASHER DIAMETER	0.350 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
THREAD LENGTH	0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER	0.190 INCHES IN
HEAD STYLE	HEXAGON EXTENDED WASHER

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 2

D7910HF-3-8Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

5305PL0783930Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is C7997-3-8?

C7997-3-8 is a SCREW ASSEMBLY,PANEL.

What parts can replace C7997-3-8?

There are 2 known substitutes for C7997-3-8: D7910HF-3-8, 5305PL0783930. Substitute compatibility should be verified for your specific system.

What is the NSN for C7997-3-8?

C7997-3-8 is cataloged in the U.S. Government catalog under NSN 5305-01-154-4325. This indicates validated use in U.S. government and defense supply chains.

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