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178407 — O-RING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

178407: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.217 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN, thread_length: 0.200 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, screw_material: COPPER ALLOY. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-017-8407, 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
178407
NSN: 5305-00-017-8407
NIINs: 000178407, 010833987
FSC: 5305 — Screws
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
head_styleROUND
head_height0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.217 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN
thread_length0.200 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
screw_materialCOPPER ALLOY
fastener_length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.125 INCHES IN
minimum_tensile_strength55000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch40
NSN5305-00-017-8407
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 178407 · 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: 0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 0.200 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.125 INCHES IN
•
HEAD STYLE: ROUND
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
FASTENER LENGTH0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH0.200 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.125 INCHES IN
HEAD STYLEROUND
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALCOPPER ALLOY
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SUBSTITUTES & CROSS-REFERENCES 1
FFS92TYPE1STYLE1SReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 178407?
178407 is a O-RING.
What parts can replace 178407?
There is 1 known substitute for 178407: FFS92TYPE1STYLE1S. Substitute compatibility should be verified for your specific system.
What is the NSN for 178407?
178407 is cataloged in the U.S. Government catalog under NSN 5305-00-017-8407. 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.