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139 042 — DISK,VALVE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

139 042: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, inside_diameter: 1.500 INCHES NOMINAL IN, outside_diameter: 1.770 INCHES NOMINAL IN, special_features: BUSHING STRAIN RELIEF, 0.270 / 0.400, overall_thickness: 0.625 INCHES NOMINAL IN, end_item_identification: WELDING MACHINE, TIG. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-013-9042, 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
139 042
NSN: 5305-00-013-9042
NIINs: 000139042, 007899238, 015163986, 015652806
FSC: 5305 — Screws
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
materialSTEEL
inside_diameter1.500 INCHES NOMINAL IN
outside_diameter1.770 INCHES NOMINAL IN
special_featuresBUSHING STRAIN RELIEF, 0.270 / 0.400
overall_thickness0.625 INCHES NOMINAL IN
end_item_identificationWELDING MACHINE, TIG
part_name_assigned_by_controlling_agencyTILT,SET, COLLAR
NSN5305-00-013-9042
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 139 042 · 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
•
WIDTH ACROSS FLATS: 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.312 INCHES NOMINAL IN
•
THREAD LENGTH: 0.312 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: CUP
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
FASTENER LENGTH0.312 INCHES NOMINAL IN
THREAD LENGTH0.312 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD DIRECTIONRIGHT-HAND
POINT STYLECUP
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 4 STYLE
INTERNAL DRIVE STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 1
FFS103TYPE3STYLE4Reference 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 139 042?
139 042 is a DISK,VALVE.
What parts can replace 139 042?
There is 1 known substitute for 139 042: FFS103TYPE3STYLE4. Substitute compatibility should be verified for your specific system.
What is the NSN for 139 042?
139 042 is cataloged in the U.S. Government catalog under NSN 5305-00-013-9042. 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.