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PSN632-78FWS — SCREW,ASSEMBLED WASHER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PSN632-78FWS: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: PAN, head_height: 0.0870 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.2560 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM IN, fastener_length: 0.843 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-383-8928, 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
PSN632-78FWS
NSN: 5305-01-383-8928
FSC: 5305 — Screws
CAGE: 1GP79 — PILGRIM SCREW CORP DBA PILGRIM AEROSPACE FASTENERS DIV ARIZONA (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_stylePAN
head_height0.0870 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.2560 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM IN
fastener_length0.843 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
washer_quantity1
special_featuresWASHER SHALL BE CAPTIVE ON SCREW, AND FREE TO TURN.
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleCROSS RECESS TYPE 1
primary_washer_styleFLAT
NSN5305-01-383-8928
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PSN632-78FWS · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.0870 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.843 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35, TYPE VI OR VII. FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
PRIMARY WASHER OUTSIDE DIAMETER: 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: PAN
•
PRIMARY WASHER STYLE: FLAT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.0870 INCHES MINIMUM AND 0.0970 INCHES MAXIMUM IN
FASTENER LENGTH0.843 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35, TYPE VI OR VII. FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PRIMARY WASHER OUTSIDE DIAMETER0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEPAN
PRIMARY WASHER STYLEFLAT
THREAD DIRECTIONRIGHT-HAND
PRIMARY WASHER MATERIAL THICKNESS0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
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
1711346-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing 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 PSN632-78FWS?
PSN632-78FWS is a SCREW,ASSEMBLED WASHER.
What parts can replace PSN632-78FWS?
There is 1 known substitute for PSN632-78FWS: 1711346-1. Substitute compatibility should be verified for your specific system.
What is the NSN for PSN632-78FWS?
PSN632-78FWS is cataloged in the U.S. Government catalog under NSN 5305-01-383-8928. This indicates validated use in U.S. government and defense supply chains.
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