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1686AS113-1 — THUMBSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1686AS113-1: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, head_style: KNURLED NO. 1, head_height: 0.750 INCHES NOMINAL IN, point_style: FLAT, thread_class: 2A A, head_diameter: 2.000 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-325-5986, 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
1686AS113-1
NSN: 5305-01-325-5986
FSC: 5305 — Screws
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
head_styleKNURLED NO. 1
head_height0.750 INCHES NOMINAL IN
point_styleFLAT
thread_class2A A
head_diameter2.000 INCHES NOMINAL IN
thread_length4.221 INCHES NOMINAL IN
fastener_length4.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.500 INCHES IN
thread_quantity_per_inch13
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-325-5986
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1686AS113-1 · 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
•
HEAD HEIGHT: 0.750 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.375 INCHES NOMINAL IN
•
THREAD LENGTH: 4.221 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
HEAD STYLE: KNURLED NO. 1
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: FLAT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.750 INCHES NOMINAL IN
FASTENER LENGTH4.375 INCHES NOMINAL IN
THREAD LENGTH4.221 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
POINT STYLEFLAT
THREAD CLASS2A A
THREAD QUANTITY PER INCH13
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1686AS113-1?
1686AS113-1 is a THUMBSCREW.
What is the NSN for 1686AS113-1?
1686AS113-1 is cataloged in the U.S. Government catalog under NSN 5305-01-325-5986. 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.