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134988-01 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

134988-01: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.057 INCHES MINIMUM AND 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN, point_style: OVAL, thread_class: 3A A, head_diameter: 0.091 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-477-4724, 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
134988-01
NSN: 5305-00-477-4724
FSC: 5305 — Screws
CAGE: 35351 — GE AVIATION SYSTEMS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.057 INCHES MINIMUM AND 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
point_styleOVAL
thread_class3A A
head_diameter0.091 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
thread_length0.209 INCHES MINIMUM AND 0.209 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
fastener_length0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
locking_featureSTRIP THREADS
thread_directionRIGHT-HAND
width_across_flats0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
NSN5305-00-477-4724
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 134988-01 · 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: 0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.057 INCHES MINIMUM AND 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.209 INCHES MINIMUM AND 0.209 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.060 INCHES0.060 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.050 INCHES NOMINAL0.050 INCHES NOMINAL IN
HEAD HEIGHT0.057 INCHES MINIMUM AND 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
FASTENER LENGTH0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
THREAD LENGTH0.209 INCHES MINIMUM AND 0.209 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.060 INCHES0.060 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
POINT STYLEOVAL
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
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 134988-01?
134988-01 is a SETSCREW.
What is the NSN for 134988-01?
134988-01 is cataloged in the U.S. Government catalog under NSN 5305-00-477-4724. 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.