PartsTable
Technical Data Sheet
Download PDF

4-526028-01 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4-526028-01: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.4200 INCHES MINIMUM AND 0.4600 INCHES MAXIMUM IN, thread_length: 0.3500 INCHES NOMINAL RIGHT INTERNAL IN, flange_thickness: 0.0900 INCHES NOMINAL IN, style_designator: FLANGED LEFT INTERNAL THREAD, surface_treatment: PASSIVATE STANDOFF, width_across_flats: 0.2500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-407-7217, 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
4-526028-01
NSN: 5340-01-407-7217
FSC: 5340 — Hardware, Commercial
CAGE: 08748 — ELDEC AEROSPACE CORP (USA)
SPECIFICATIONS
length0.4200 INCHES MINIMUM AND 0.4600 INCHES MAXIMUM IN
thread_length0.3500 INCHES NOMINAL RIGHT INTERNAL IN
flange_thickness0.0900 INCHES NOMINAL IN
style_designatorFLANGED LEFT INTERNAL THREAD
surface_treatmentPASSIVATE STANDOFF
width_across_flats0.2500 INCHES NOMINAL IN
nominal_thread_size2.5 MILLIMETERS RIGHT INTERNAL MM
cross-sectional_shapeHEXAGON
thread_tolerance_class6H INTERNAL RIGHT INTERNAL
flange_width_across_flats0.2500 INCHES NOMINAL IN
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF
NSN5340-01-407-7217
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4-526028-01 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLANGE WIDTH ACROSS FLATS: 0.2500 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.2500 INCHES NOMINAL IN
•
THREAD TOLERANCE CLASS: 6H INTERNAL RIGHT INTERNAL
•
LENGTH: 0.4200 INCHES MINIMUM AND 0.4600 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF
•
FLANGE THICKNESS: 0.0900 INCHES NOMINAL IN
•
THREAD LENGTH: 0.3500 INCHES NOMINAL RIGHT INTERNAL IN
•
STYLE DESIGNATOR: FLANGED LEFT INTERNAL THREAD
TECHNICAL CHARACTERISTICS
FLANGE WIDTH ACROSS FLATS0.2500 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.2500 INCHES NOMINAL IN
THREAD TOLERANCE CLASS6H INTERNAL RIGHT INTERNAL
LENGTH0.4200 INCHES MINIMUM AND 0.4600 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STANDOFF
FLANGE THICKNESS0.0900 INCHES NOMINAL IN
THREAD LENGTH0.3500 INCHES NOMINAL RIGHT INTERNAL IN
STYLE DESIGNATORFLANGED LEFT INTERNAL THREAD
NOMINAL THREAD SIZE2.5 MILLIMETERS RIGHT INTERNAL MM
CROSS-SECTIONAL SHAPEHEXAGON
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 4-526028-01?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 4-526028-01?
4-526028-01 is a STANDOFF,THREADED,SPACING.
What is the NSN for 4-526028-01?
4-526028-01 is cataloged in the U.S. Government catalog under NSN 5340-01-407-7217. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 4-526028-01

✓ 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.