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T4491S — T4491S

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

T4491S: T4491S.

The T4491S is a the manufacturer industrial component. Key specifications include point_style: DIAMOND, shank_style: SCREW, cubic_measure: 445.625 CUBIC INCHES, head_diameter: 0.313 INCHES NOMINAL IN, shank_diameter: 0.148 INCHES NOMINAL IN, fastener_length: 3.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-679-1828, 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
T4491S
NSN: 5315-01-679-1828
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 83752 — MAZE NAILS DIV OF MAZE W H CO (USA)
SPECIFICATIONS
point_styleDIAMOND
shank_styleSCREW
cubic_measure445.625 CUBIC INCHES
head_diameter0.313 INCHES NOMINAL IN
shank_diameter0.148 INCHES NOMINAL IN
fastener_length3.500 INCHES NOMINAL IN
special_features12 1-LB BOXES IN EACH PACKAGE; 54 NAILS PER BOX
unit_of_issue_cube0.26 CUBIC FEET
unit_of_issue_weight12.0 POUNDS LBS
exterior_container_quantity12
part_name_assigned_by_controlling_agencyNAIL, DECK 3 1/2
NSN5315-01-679-1828
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: T4491S · 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: 0.148 INCHES NOMINAL IN
•
UNIT OF ISSUE CUBE: 0.26 CUBIC FEET
•
FASTENER LENGTH: 3.500 INCHES NOMINAL IN
•
POINT STYLE: DIAMOND
•
EXTERIOR CONTAINER QUANTITY: 12
•
SHANK STYLE: SCREW
•
UNIT OF ISSUE WEIGHT: 12.0 POUNDS LBS
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.148 INCHES NOMINAL IN
UNIT OF ISSUE CUBE0.26 CUBIC FEET
FASTENER LENGTH3.500 INCHES NOMINAL IN
POINT STYLEDIAMOND
EXTERIOR CONTAINER QUANTITY12
SHANK STYLESCREW
UNIT OF ISSUE WEIGHT12.0 POUNDS LBS
SPECIAL FEATURES12 1-LB BOXES IN EACH PACKAGE; 54 NAILS PER BOX
CUBIC MEASURE445.625 CUBIC INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAIL, DECK 3 1/2
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

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 T4491S?
T4491S is a T4491S.
What is the NSN for T4491S?
T4491S is cataloged in the U.S. Government catalog under NSN 5315-01-679-1828. 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.