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397539-1 — SCREW,PANEL FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

397539-1: SCREW,PANEL FASTENER.

The SCREW,PANEL FASTENER is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, thread_class: 2A A, thread_length: 0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN, fastener_length: 0.750 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN, special_features: THREADS SHALL BE IAW MIL-S-7742;BAG AND OR TAG WITH INDENT IAW MIL-STD-130, surface_treatment: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-481-0373, 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
397539-1
NSN: 5305-01-481-0373
FSC: 5305 — Screws
CAGE: 62228 — MEGGITT DEFENSE SYSTEMS, INC. DBA MEGGITT DEFENSE SYSTEMS INC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
thread_class2A A
thread_length0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
fastener_length0.750 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
special_featuresTHREADS SHALL BE IAW MIL-S-7742;BAG AND OR TAG WITH INDENT IAW MIL-STD-130
surface_treatmentUNABLE TO DECODE
nominal_thread_diameter0.250 INCHES IN
minimum_tensile_strength160000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
material_document_and_classificationUNABLE TO DECODE
surface_treatment_document_and_classificationUNABLE TO DECODE
NSN5305-01-481-0373
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 397539-1 · 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
•
FASTENER LENGTH: 0.750 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
THREAD LENGTH: 0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
SURFACE TREATMENT: UNABLE TO DECODE
•
MINIMUM TENSILE STRENGTH: 160000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.750 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
THREAD LENGTH0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
NOMINAL THREAD DIAMETER0.250 INCHES IN
SPECIAL FEATURESTHREADS SHALL BE IAW MIL-S-7742;BAG AND OR TAG WITH INDENT IAW MIL-STD-130
SURFACE TREATMENTUNABLE TO DECODE
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH LBS
THREAD CLASS2A A
THREAD QUANTITY PER INCH20
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

No substitute or cross-reference records for this part.

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 397539-1?
397539-1 is a SCREW,PANEL FASTENER.
What is the NSN for 397539-1?
397539-1 is cataloged in the U.S. Government catalog under NSN 5305-01-481-0373. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.