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FT1171-122 — SCREW ASSEMBLY,PANEL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

FT1171-122: SCREW ASSEMBLY,PANEL.

The SCREW ASSEMBLY,PANEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 PRIMARY WASHER, head_style: PAN, head_height: 0.077 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN, thread_length: 0.188 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-129-9034, 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
FT1171-122
NSN: 5305-01-129-9034
FSC: 5305 — Screws
CAGE: 58794 — FASTENER TECHNOLOGY CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 301 PRIMARY WASHER
head_stylePAN
head_height0.077 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
thread_length0.188 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
fastener_length0.583 INCHES MINIMUM AND 0.613 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE STAND-OFF
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
minimum_tensile_strength112000 POUNDS PER SQUARE INCH LBS
NSN5305-01-129-9034
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FT1171-122 · 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: 0.077 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.583 INCHES MINIMUM AND 0.613 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER
•
MATERIAL ACCOMMODATED THICKNESS: 0.063 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.188 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE PRIMARY WASHER
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.077 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
FASTENER LENGTH0.583 INCHES MINIMUM AND 0.613 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF
MATERIAL ACCOMMODATED THICKNESS0.063 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
THREAD LENGTH0.188 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE PRIMARY WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-493 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-23195 MIL SPEC SINGLE MATERIAL RESPONSE STAND-OFF
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 3
CPRL7900-6-B-3.5Reference document
Same NSN cross-reference
Reference document — Secondary reference
10115219Reference document
Same NSN cross-reference
Reference document — Informative reference only
965875-122CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 FT1171-122?
FT1171-122 is a SCREW ASSEMBLY,PANEL.
What parts can replace FT1171-122?
There are 3 known substitutes for FT1171-122: CPRL7900-6-B-3.5, 10115219, 965875-122C. Substitute compatibility should be verified for your specific system.
What is the NSN for FT1171-122?
FT1171-122 is cataloged in the U.S. Government catalog under NSN 5305-01-129-9034. 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.