NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5305 › 5305-01-056-0165
Close Tolerance Screw P/N NAS1578A4T20
In stock — 10 on our U.S. shelfNSN 5305-01-056-0165 5305010560165 NIIN 010560165
SECO Parts has 10 in stock of NSN 5305-01-056-0165 — Close Tolerance Screw — on our own shelf in Augusta, GA: a stocking supplier, not a broker.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- SCREW,CLOSE TOLERANCE
- SECO description
- SCREW
- Federal supply class
- FSC 5305 — Screws
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 10 |
| Total | 10 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5305-01-056-0165 010560165 NAS1578A4T20
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Thread class
- 3A
- Thread direction
- Right-Hand
- Thread length
- 0.378–0.428 in
- Fastener length
- 1.638–1.668 in
- Head diameter
- 0.472–0.492 in
- Head height
- 0.140–0.150 in
- Grip diameter
- 0.2485–0.2495 in
- Nominal thread diameter
- Inches 0.250
- Grip length
- 1.240–1.260 in
- Thread quantity per inch
- 28
- Minimum tensile strength
- Pounds Per Square Inch 160000
- Hardness rating
- Overall Rockwell C Minimum 36.0 and Rockwell C Maximum 40.0
- Surface finish
- Bearing Surface of Head Microinches 32.0
- Surface finish
- Threads Microinches 32.0
- Surface finish
- Grip Microinches 32.0
- Material
- Overall Steel Comp E4340 or Steel Comp 4140 or Steel Comp 8740 or Steel Comp 8735 or Steel Comp 6150
- Surface treatment
- Overall Cadmium and Chromate
- Surface treatment document and classification
- Overall Fed Spec Single Treatment Response QQ--416 TY2 CL2
- Thread series designator
- Unified National Joint Fine (Unjf)
- Specification/standard data
- Professional/industrial Association Standard 80205-NAS1578
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
NAS1578A4T20
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| Hazardous material indicator | N No hazardous material |
Source: public FLIS/PUB LOG cataloging data.
Why buy from SECO
These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 5305-01-056-0165?
NSN 5305-01-056-0165 (5305010560165) — Close Tolerance Screw: SECO Parts has 10 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for close tolerance screw in federal supply class 5305 (Screws).
Is NSN 5305-01-056-0165 available?
SECO Parts has 10 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5305-01-056-0165 cost?
SECO quotes NSN 5305-01-056-0165 on request, usually the same business day.
What part numbers cross-reference to NSN 5305-01-056-0165?
Part numbers that cross-reference this NSN include NAS1578A4T20. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names SCREW,CLOSE TOLERANCE. Same name is not the same part: check the part numbers.