NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5305 › 5305-01-256-5202
Cap Hexagon Head Screw P/N MS51109-123
In stock — 12 on our U.S. shelfNSN 5305-01-256-5202 5305012565202 NIIN 012565202
SECO Parts has 12 in stock of NSN 5305-01-256-5202 — Cap Hexagon Head Screw — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Typical price: $50–$100 each — an estimate from the government catalog price and what we have charged for similar parts. Not a quote: request one for your price. Quote lines carry a $50 minimum.
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,CAP,HEXAGON HEAD
- SECO description
- BOLT
- Federal supply class
- FSC 5305 — Screws
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 12 |
| Total | 12 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5305-01-256-5202 012565202 MS51109-123 NASM51109 200254
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
- 2A
- Thread direction
- Right-Hand
- Thread length
- 3.558–3.750 in
- Fastener length
- 3.656–3.750 in
- Head height
- 0.302–0.323 in
- Width between flats
- 0.736–0.750 in
- Shank unthreaded hole diameter
- First Hole Inches Minimum 0.105 and Inches Maximum 0.113
- Nominal thread diameter
- Inches 0.500
- Thread quantity per inch
- 13
- Minimum tensile strength
- Pounds Per Square Inch 70000
- Hardness rating
- Overall Rockwell B Maximum 235.0
- Distance from head largest bearing surface to shank hole center
- First Hole Inches Minimum 3.474 and Inches Maximum 3.588
- Material
- Overall Steel Comp 410 or Steel Comp 416 or Steel Comp 430
- Material document and classification
- Overall Fed STD All Material Responses 66
- Surface treatment
- Overall Passivate
- Surface treatment document and classification
- Overall Fed Spec Single Treatment Response QQ--35
- Thread series designator
- Unified National Coarse (UNC)
- Nondefinitive spec/std data
- Type 2 and Style 10
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
MS51109-123 NASM51109 200254
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Source of supply | SMS DLA Land and Maritime, Columbus, Ohio |
| Acquisition advice code | H Direct delivery from vendor — not stocked by the government; delivered direct from a vendor under a central contract. SECO has 12 on the shelf |
| Unit of issue | EA each |
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| Controlled inventory code | U Unclassified |
| 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 5305-01-256-5202?
NSN 5305-01-256-5202 (5305012565202) — Cap Hexagon Head Screw: SECO Parts has 12 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for cap hexagon head screw in federal supply class 5305 (Screws).
Is NSN 5305-01-256-5202 available?
SECO Parts has 12 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5305-01-256-5202 cost?
SECO typically prices parts like NSN 5305-01-256-5202 at $50–$100 each: an estimate from the government catalog price and what SECO has charged for similar parts. It is not a quote — request one for your price, usually answered the same business day. Quote lines carry a $50 minimum.
What part numbers cross-reference to NSN 5305-01-256-5202?
Part numbers that cross-reference this NSN include MS51109-123, NASM51109, 200254. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names SCREW,CAP,HEXAGON HEAD. Same name is not the same part: check the part numbers.