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548640 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

548640: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, head_style: PAN NO. 2, head_height: 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.185 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-009-7696, 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
548640
NSN: 5305-00-009-7696
FSC: 5305 — Screws
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
head_stylePAN NO. 2
head_height0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.185 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
shoulder_length0.145 INCHES MINIMUM AND 0.150 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.132 INCHES MINIMUM AND 0.134 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatmentPASSIVATE OVERALL
NSN5305-00-009-7696
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 548640 · 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: 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.145 INCHES MINIMUM AND 0.150 INCHES MAXIMUM FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.132 INCHES MINIMUM AND 0.134 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.185 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
HEAD STYLE: PAN NO. 2
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
FASTENER LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SHOULDER LENGTH0.145 INCHES MINIMUM AND 0.150 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER DIAMETER0.132 INCHES MINIMUM AND 0.134 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.185 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEPAN NO. 2
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTPASSIVATE OVERALL
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 548640?
548640 is a SCREW,SHOULDER.
What is the NSN for 548640?
548640 is cataloged in the U.S. Government catalog under NSN 5305-00-009-7696. 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.