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MS17985C438A — PIN,QUICK RELEASE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS17985C438A: PIN,QUICK RELEASE.

The PIN,QUICK RELEASE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C DETENT, grip_length: 3.800 INCHES MINIMUM AND 3.820 INCHES MAXIMUM IN, handle_length: 1.750 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN, actuation_type: PUSH, shank_diameter: 0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN, shear_strength: 9200 DOUBLE POUNDS PER SQUARE INCH. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-223-0367, 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
MS17985C438A
NSN: 5315-00-223-0367
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: C4293 — FAIRCHILD FASTENERS EUROPE - VSD GMBH (DEU)
SPECIFICATIONS
materialSTEEL COMP 440C DETENT
grip_length3.800 INCHES MINIMUM AND 3.820 INCHES MAXIMUM IN
handle_length1.750 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
actuation_typePUSH
shank_diameter0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN
shear_strength9200 DOUBLE POUNDS PER SQUARE INCH
detent_quantity2
hardness_rating40.0 ROCKWELL C MINIMUM OVERALL
actuation_methodPUSH BUTTON
special_featuresCORROSION RESISTING STEEL ATTACHING LINK OR RING,SPEC QQ-W-423 WITH PASSIVATED SURFACE,SPEC QQ-P-35
style_designatorT HANDLE
surface_treatmentPASSIVATE DETENT
NSN5315-00-223-0367
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS17985C438A · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK DIAMETER: 0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN
•
ACTUATION METHOD: PUSH BUTTON
•
DETENT TO TAPERED END DISTANCE: 0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
DETENT QUANTITY: 2
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625,TY 2,CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541,CL 1A MIL SPEC 2ND TREATMENT RESPONSE HANDLE A
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN
ACTUATION METHODPUSH BUTTON
DETENT TO TAPERED END DISTANCE0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
DETENT QUANTITY2
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625,TY 2,CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541,CL 1A MIL SPEC 2ND TREATMENT RESPONSE HANDLE A
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625,TY 2,CL1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541,CL 1A MIL SPEC 2ND TREATMENT RESPONSE BUTTON A
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE DETENT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SHANK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPINDLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE COLLAR
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 2
SLC4AT38AReference document
Same NSN cross-reference
Reference document — Secondary reference
LG4CT0438Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS17985C438A?
MS17985C438A is a PIN,QUICK RELEASE.
What parts can replace MS17985C438A?
There are 2 known substitutes for MS17985C438A: SLC4AT38A, LG4CT0438. Substitute compatibility should be verified for your specific system.
What is the NSN for MS17985C438A?
MS17985C438A is cataloged in the U.S. Government catalog under NSN 5315-00-223-0367. 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.